GUM

This general term applies to three important species of gum in the South, the principal one usually being distinguished as "red" or "sweet" gum (see Fig. 10). The next in importance being the "tupelo" or "bay poplar," and the least of the trio is designated as "black" or "sour" gum (see Fig. 11). Up to the year 1900 little was known of gum as a wood for cooperage purposes, but by the continued advance in price of the woods used, a few of the most progressive manufacturers, looking into the future, saw that the supply of the various woods in use was limited, that new woods would have to be sought, and gum was looked upon as a possible substitute, owing to its cheapness and abundant supply. No doubt in the future this wood will be used to a considerable extent in the manufacture of both "tight" and "slack" cooperage. In the manufacture of the gum, unless the knives and saws are kept very sharp, the wood has a tendency to break out, the corners splitting off; and also, much difficulty has been experienced in seasoning and kiln-drying.

In the past, gum, having no marketable value, has been left standing after logging operations, or, where the land has been cleared for farming, the trees have been "girdled" and allowed to rot, and then felled and burned as trash. Now, however, that there is a market for this species of timber, it will be profitable to cut the gum with the other hardwoods, and this species of wood will come in for a greater share of attention than ever before.

38. Red Gum (Liquidamber styraciflua) (Sweet Gum, Hazel Pine, Satin Walnut, Liquidamber, Bilsted). The wood is about as stiff and as strong as chestnut, rather heavy, it splits easily and is quite brash, commonly cross-grained, of fine texture, and has a large proportion of whitish sapwood, which decays rapidly when exposed to the weather; but the reddish brown heartwood is quite durable, even in the ground. The external appearance of the wood is of fine grain and smooth, close texture, but when broken the lines of fracture do not run with apparent direction of the growth; possibly it is this unevenness of grain which renders the wood so difficult to dry without twisting and warping. It has little resiliency; can be easily bent when steamed, and when properly dried will hold its shape. The annual rings are not distinctly marked, medullary rays fine and numerous. The green wood contains much water, and consequently is heavy and difficult to float, but when dry it is as light as basswood. The great amount of water in the green wood, particularly in the sap, makes it difficult to season by ordinary methods without warping and twisting. It does not check badly, is tasteless and odorless, and when once seasoned, swells and shrinks but little unless exposed to the weather. Used for boat finish, veneers, cabinet work, furniture, fixtures, interior decoration, shingles, paving blocks, woodenware, cooperage, machinery frames, refrigerators, and trunk slats.

Range of Red Gum

Red gum is distributed from Fairfield County, Conn., to southeastern Missouri, through Arkansas and Oklahoma to the valley of the Trinity River in Texas, and eastward to the Atlantic coast. Its commercial range is restricted, however, to the moist lands of the lower Ohio and Mississippi basins and of the Southeastern coast. It is one of the commonest timber trees in the hardwood bottoms and drier swamps of the South. It grows in mixture with ash, cottonwood and oak (see Fig. 12). It is also found to a considerable extent on the lower ridges and slopes of the southern Appalachians, but there it does not reach merchantable value and is of little importance. Considerable difference is found between the growth in the upper Mississippi bottoms and that along the rivers on the Atlantic coast and on the Gulf. In the latter regions the bottoms are lower, and consequently more subject to floods and to continued overflows (see Fig. 11). The alluvial deposit is also greater, and the trees grow considerably faster. Trees of the same diameter show a larger percentage of sapwood there than in the upper portions of the Mississippi Valley. The Mississippi Valley hardwood trees are for the most part considerably older, and reach larger dimensions than the timber along the coast.

Form of the Red Gum

In the best situations red gum reaches a height of 150 feet, and a diameter of 5 feet. These dimensions, however are unusual. The stem is straight and cylindrical, with dark, deeply-furrowed bark, and branches often winged with corky ridges. In youth, while growing vigorously under normal conditions, it assumes a long, regular, conical crown, much resembling the form of a conifer (see Fig. 12). After the tree has attained its height growth, however, the crown becomes rounded, spreading and rather ovate in shape. When growing in the forest the tree prunes itself readily at an early period, and forms a good length of clear stem, but it branches strongly after making most of its height growth. The mature tree is usually forked, and the place where the forking commences determines the number of logs in the tree or its merchantable length, by preventing cutting to a small diameter in the top. On large trees the stem is often not less than eighteen inches in diameter where the branching begins. The over-mature tree is usually broken and dry topped, with a very spreading crown, in consequence of new branches being sent out.

Tolerance of Red Gum

Throughout its entire life red gum is intolerant in shade, there are practically no red seedlings under the dense forest cover of the bottom land, and while a good many may come up under the pine forest on the drier uplands, they seldom develop into large trees. As a rule seedlings appear only in clearings or in open spots in the forest. It is seldom that an over-topped tree is found, for the gum dies quickly if suppressed, and is consequently nearly always a dominant or intermediate tree. In a hardwood bottom forest the timber trees are all of nearly the same age over considerable areas, and there is little young growth to be found in the older stands. The reason for this is the intolerance of most of the swamp species. A scale of intolerance containing the important species, and beginning with the most light-demanding, would run as follows: Cottonwood, sycamore, red gum, white elm, white ash, and red maple.

Demands upon Soil and Moisture

While the red gum grows in various situations, it prefers the deep, rich soil of the hardwood bottoms, and there reaches its best development (see Fig. 10). It requires considerable soil moisture, though it does not grow in the wetter swamps, and does not thrive on dry pine land. Seedlings, however, are often found in large numbers on the edges of the uplands and even on the sandy pine land, but they seldom live beyond the pole stage. When they do, they form small, scrubby trees that are of little value. Where the soil is dry the tree has a long tap root. In the swamps, where the roots can obtain water easily, the development of the tap root is poor, and it is only moderate on the glade bottom lands, where there is considerable moisture throughout the year, but no standing water in the summer months.

Reproduction of Red Gum

Red gum reproduces both by seed and by sprouts (see Fig. 12). It produces seed fairly abundantly every year, but about once in three years there is an extremely heavy production. The tree begins to bear seed when twenty-five to thirty years old, and seeds vigorously up to an age of one hundred and fifty years, when its productive power begins to diminish. A great part of the seed, however, is abortive. Red gum is not fastidious in regard to its germinating bed; it comes up readily on sod in old fields and meadows, on decomposing humus in the forest, or on bare clay-loam or loamy sand soil. It requires a considerable degree of light, however, and prefers a moist seed bed. The natural distribution of the seed takes place for several hundred feet from the seed trees, the dissemination depending almost entirely on the wind. A great part of the seed falls on the hardwood bottom when the land is flooded, and is either washed away or, if already in the ground and germinating, is destroyed by the long-continued overflow. After germinating, the red gum seedling demands, above everything else, abundant light for its survival and development. It is for this reason that there is very little growth of red gum, either in the unculled forest or on culled land, where, as is usually the case, a dense undergrowth of cane, briers, and rattan is present. Under the dense underbrush of cane and briers throughout much of the virgin forest, reproduction of any of the merchantable species is of course impossible. And even where the land has been logged over, the forest is seldom open enough to allow reproduction of cottonwood and red gum. Where, however, seed trees are contiguous to pastures or cleared land, scattered seedlings are found springing up in the open, and where openings occur in the forest, there are often large numbers of red gum seedlings, the reproduction generally occurring in groups. But over the greater part of the Southern hardwood bottom land forest reproduction is very poor. The growth of red gum during the early part of its life, and up to the time it reaches a diameter of eight inches breast-high, is extremely rapid, and, like most of the intolerant species, it attains its height growth at an early period. Gum sprouts readily from the stump, and the sprouts surpass the seedlings in rate of height growth for the first few years, but they seldom form large timber trees. Those over fifty years of age seldom sprout. For this reason sprout reproduction is of little importance in the forest. The principal requirements of red gum, then, are a moist, fairly rich soil and good exposure to light. Without these it will not reach its best development.

Second-Growth Red Gum

Second-growth red gum occurs to any considerable extent only on land which has been thoroughly cleared. Throughout the South there is a great deal of land which was in cultivation before the Civil War, but which during the subsequent period of industrial depression was abandoned and allowed to revert to forest. These old fields now mostly covered with second-growth forest, of which red gum forms an important part (see Fig. 12). Frequently over fifty per cent of the stand consists of this species, but more often, and especially on the Atlantic coast, the greater part is of cottonwood or ash. These stands are very dense, and the growth is extremely rapid. Small stands of young growth are also often found along the edges of cultivated fields. In the Mississippi Valley the abandoned fields on which young stands have sprung up are for the most part being rapidly cleared again. The second growth here is considered of little value in comparison with the value of the land for agricultural purposes. In many cases, however, the farm value of the land is not at present sufficient to make it profitable to clear it, unless the timber cut will at least pay for the operation. There is considerable land upon which the second growth will become valuable timber within a few years. Such land should not be cleared until it is possible to utilize the timber.

39. Tupelo Gum (Nyssa aquatica) (Bay Poplar, Swamp Poplar, Cotton Gum, Hazel Pine, Circassian Walnut, Pepperidge, Nyssa). The close similarity which exists between red and tupelo gum, together with the fact that tupelo is often cut along with red gum, and marketed with the sapwood of the latter, makes it not out of place to give consideration to this timber. The wood has a fine, uniform texture, is moderately hard and strong, is stiff, not elastic, very tough and hard to split, but easy to work with tools. Tupelo takes glue, paint, or varnish well, and absorbs very little of the material. In this respect it is equal to yellow poplar and superior to cottonwood. The wood is not durable in contact with ground, and requires much care in seasoning. The distinction between the heartwood and sapwood of this species is marked. The former varies in color from a dull gray to a dull brown; the latter is whitish or light yellow like that of poplar. The wood is of medium weight, about thirty-two pounds per cubic foot when dry, or nearly that of red gum and loblolly pine. After seasoning it is difficult to distinguish the better grades of sapwood from poplar. Owing to the prejudice against tupelo gum, it was until recently marketed under such names as bay poplar, swamp poplar, nyssa, cotton gum, circassian walnut, and hazel pine. Since it has become evident that the properties of the wood fit it for many uses, the demand for tupelo has largely increased, and it is now taking rank with other standard woods under its rightful name. Heretofore the quality and usefulness of this wood were greatly underestimated, and the difficulty of handling it was magnified. Poor success in seasoning and kiln-drying was laid to defects of the wood itself, when, as a matter of fact, the failures were largely due to the absence of proper methods in handling. The passing of this prejudice against tupelo is due to a better understanding of the characteristics and uses of the wood. Handled in the way in which its particular character demands, tupelo is a wood of much value.

Uses of Tupelo Gum

Tupelo gum is now used in slack cooperage, principally for heading. It is used extensively for house flooring and inside finishing, such as mouldings, door jambs, and casings. A great deal is now shipped to European countries, where it is highly valued for different classes of manufacture. Much of the wood is used in the manufacture of boxes, since it works well upon rotary veneer machines. There is also an increasing demand for tupelo for laths, wooden pumps, violin and organ sounding boards, coffins, mantelwork, conduits and novelties. It is also used in the furniture trade for backing, drawers, and panels.

Range of Tupelo Gum

Tupelo occurs throughout the coastal region of the Atlantic States, from southern Virginia to northern Florida, through the Gulf States to the valley of the Nueces River in Texas, through Arkansas and southern Missouri to western Kentucky and Tennessee, and to the valley of the lower Wabash River. Tupelo is being extensively milled at present only in the region adjacent to Mobile Ala., and in southern and central Louisiana, where it occurs in large merchantable quantities, attaining its best development in the former locality. The country in this locality is very swampy (see Fig. 11), and within a radius of one hundred miles tupelo gum is one of the principal timber trees. It grows only in the swamps and wetter situations (see Fig. 11), often in mixture with cypress, and in the rainy season it stands in from two to twenty feet of water.

40. Black Gum (Nyssa sylvatica) (Sour Gum). Black gum is not cut to much extent, owing to its less abundant supply and poorer quality, but is used for repair work on wagons, for boxes, crates, wagon hubs, rollers, bowls, woodenware, and for cattle yokes and other purposes which require a strong, non-splitting wood. Heartwood is light brown in color, often nearly white; sapwood hardly distinguishable, fine grain, fibres interwoven. Wood is heavy, not hard, difficult to work, strong, very tough, checks and warps considerably in drying, not durable. It is distributed from Maine to southern Ontario, through central Michigan to southeastern Missouri, southward to the valley of the Brazos River in Texas, and eastward to the Kissimmee River and Tampa Bay in Florida. It is found in the swamps and hardwood bottoms, but is more abundant and of better size on the slightly higher ridges and hummocks in these swamps, and on the mountain slopes in the southern Alleghany region. Though its range is greater than that of either red or tupelo gum, it nowhere forms an important part of the forest.

HACKBERRY

41. Hackberry (Celtis occidentalis) (Sugar Berry, Nettle Tree). The wood is handsome, heavy, hard, strong, quite tough, of moderately fine texture, and greenish or yellowish color, shrinks moderately, works well and stands well, and takes a good polish. Used to some extent in cooperage, and in the manufacture of cheap furniture. Medium- to large-sized tree, locally quite common, largest in the lower Mississippi Valley. Occurs in nearly all parts of the eastern United States.

HICKORY

The hickories of commerce are exclusively North American and some of them are large and beautiful trees of 60 to 70 feet or more in height. They are closely allied to the walnut, and the wood is very like walnut in grain and color, though of a somewhat darker brown. It is one of the finest of American hardwoods in point of strength; in toughness it is superior to ash, rather coarse in texture, smooth and of straight grain, very heavy and strong as well as elastic and tenacious, but decays rapidly, especially the sapwood when exposed to damp and moisture, and is very liable to attack from worms and boring insects. The cross-section of hickory is peculiar, the annual rings appear like fine lines instead of like the usual pores, and the medullary rays, which are also very fine but distinct, in crossing these form a peculiar web-like pattern which is one of the characteristic differences between hickory and ash. Hickory is rarely subjected to artificial treatment, but there is this curious fact in connection with the wood, that, contrary to most other woods, creosote is only with difficulty injected into the sap, although there is no difficulty in getting it into the heartwood. It dries slowly, shrinks and checks considerably in seasoning; is not durable in contact with the soil or if exposed. Hickory excels as wagon and carriage stock, for hoops in cooperage, and is extensively used in the manufacture of implements and machinery, for tool handles, timber pins, harness work, dowel pins, golf clubs, and fishing rods. The hickories are tall trees with slender stems, never forming forests, occasionally small groves, but usually occur scattered among other broad-leaved trees in suitable localities. The following species all contribute more or less to the hickory of the markets:

42. Shagbark Hickory (Hicoria ovata) (Shellbark Hickory, Scalybark Hickory). A medium- to large-sized tree, quite common; the favorite among the hickories. Heartwood light brown, sapwood ivory or cream-colored. Wood close-grained, compact structure, annual rings clearly marked. Very hard, heavy, strong, tough, and flexible, but not durable in contact with the soil or when exposed. Used for agricultural implements, wheel runners, tool handles, vehicle parts, baskets, dowel pins, harness work, golf clubs, fishing rods, etc. Best developed in the Ohio and Mississippi basins; from Lake Ontario to Texas, Minnesota to Florida.

43. Mockernut Hickory (Hicoria alba) (Black Nut Hickory, Black Hickory, Bull Nut Hickory, Big Bud Hickory, White Heart Hickory). A medium- to large-sized tree. Wood in its quality and uses similar to the preceding. Its range is the same as that of Hicoria ovata. Common, especially in the South.

44. Pignut Hickory (Hicoria glabra) (Brown Hickory, Black Hickory, Switchbud Hickory). A medium- to large-sized tree. Heavier and stronger than any of the preceding. Heartwood light to dark brown, sapwood nearly white. Abundant, all eastern United States.

45. Bitternut Hickory (Hicoria minima) (Swamp Hickory). A medium-sized tree, favoring wet localities. Heartwood light brown, sapwood lighter color. Wood in its quality and uses not so valuable as Hicoria ovata, but is used for the same purposes. Abundant, all eastern United States.

46. Pecan (Hicoria pecan) (Illinois Nut). A large tree, very common in the fertile bottoms of the western streams. Indiana to Nebraska and southward to Louisiana and Texas.

HOLLY

47. Holly (Ilex opaca). Small to medium-sized tree. Wood of medium weight, hard, strong, tough, of exceedingly fine grain, closer in texture than most woods, of white color, sometimes almost as white as ivory; requires great care in its treatment to preserve the whiteness of the wood. It does not readily absorb foreign matter. Much used by turners and for all parts of musical instruments, for handles on whips and fancy articles, draught-boards, engraving blocks, cabinet work, etc. The wood is often dyed black and sold as ebony; works well and stands well. Most abundant in the lower Mississippi Valley and Gulf States, but occurring eastward to Massachusetts and north to Indiana.

48. Holly (Ilex monticolo) (Mountain Holly). Small-sized tree. Wood in its quality and uses similar to the preceding, but is not very generally known. It is found in the Catskill Mountains and extends southward along the Alleghanies as far as Alabama.

HORSE CHESTNUT (See Buckeye)

IRONWOOD

49. Ironwood (Ostrya Virginiana) (Hop Hornbeam, Lever Wood). Small-sized tree, common. Heartwood light brown tinged with red, sapwood nearly white. Wood heavy, tough, exceedingly close-grained, very strong and hard, durable in contact with the soil, and will take a fine polish. Used for small articles like levers, handles of tools, mallets, etc. Ranges throughout the United States east of the Rocky Mountains.

LAUREL

50. Laurel (Umbellularia Californica) (Myrtle). A Western tree, produces timber of light brown color of great size and beauty, and is very valuable for cabinet and inside work, as it takes a fine polish. California and Oregon, coast range of the Sierra Nevada Mountains.

LOCUST

51. Black Locust (Robinia pseudacacia) (Locust, Yellow Locust, Acacia). Small to medium-sized tree. Wood very heavy, hard, strong, and tough, rivalling some of the best oak in this latter quality. The wood has great torsional strength, excelling most of the soft woods in this respect, of coarse texture, close-grained and compact structure, takes a fine polish. Annual rings clearly marked, very durable in contact with the soil, shrinks and checks considerably in drying, the very narrow sapwood greenish yellow, the heartwood brown, with shades of red and green. Used for wagon hubs, trenails or pins, but especially for railway ties, fence posts, and door sills. Also used for boat parts, turnery, ornamentations, and locally for construction. Abroad it is much used for furniture and farming implements and also in turnery. At home in the Alleghany Mountains, extensively planted, especially in the West.

52. Honey Locust (Gleditschia triacanthos) (Honey Shucks, Locust, Black Locust, Brown Locust, Sweet Locust, False Acacia, Three-Thorned Acacia). A medium-sized tree. Wood heavy, hard, strong, tough, durable in contact with the soil, of coarse texture, susceptible to a good polish. The narrow sapwood yellow, the heartwood brownish red. So far, but little appreciated except for fences and fuel. Used to some extent for wheel hubs, and locally in rough construction. Found from Pennsylvania to Nebraska, and southward to Florida and Texas; locally quite abundant.

53. Locust (Robinia viscosa) (Clammy Locust). Usually a shrub five or six feet high, but known to reach a height of 40 feet in the mountains of North Carolina, with the habit of a tree. Wood light brown, heavy, hard, and close-grained. Not used to much extent in manufacture. Range same as the preceding.

MAGNOLIA

54. Magnolia (Magnolia glauca) (Swamp Magnolia, Small Magnolia, Sweet Bay, Beaver Wood). Small-sized tree. Heartwood reddish brown, sap wood cream white. Sparingly used in manufacture. Ranges from Essex County, Mass., to Long Island, N.Y., from New Jersey to Florida, and west in the Gulf region to Texas.

55. Magnolia (Magnolia tripetala) (Umbrella Tree). A small-sized tree. Wood in its quality similiar to the preceding. It may be easily recognized by its great leaves, twelve to eighteen inches long, and five to eight inches broad. This species as well as the preceding is an ornamental tree. Ranges from Pennsylvania southward to the Gulf.

56. Cucumber Tree (Magnolia accuminata) (Tulip-wood, Poplar). Medium- to large-sized tree. Heartwood yellowish brown, sapwood almost white. Wood light, soft, satiny, close-grained, durable in contact with the soil, resembling and sometimes confounded with tulip tree (Liriodendron tulipifera) in the markets. The wood shrinks considerably, but seasons without much injury, and works and stands well. It bends readily when steamed, and takes stain and paint well. Used in cooperage, for siding, for panelling and finishing lumber in house, car and shipbuilding, etc., also in the manufacture of toys, culinary woodenware, and backing for drawers. Most common in the southern Alleghanies, but distributed from western New York to southern Illinois, south through central Kentucky and Tennessee to Alabama, and throughout Arkansas.

MAPLE

Wood heavy, hard, strong, stiff, and tough, of fine texture, frequently wavy-grained, this giving rise to "curly" and "blister" figures which are much admired. Not durable in the ground, or when exposed. Maple is creamy white, with shades of light brown in the heartwood, shrinks moderately, seasons, works, and stands well, wears smoothly, and takes a fine polish. The wood is used in cooperage, and for ceiling, flooring, panelling, stairway, and other finishing lumber in house, ship, and car construction. It is used for the keels of boats and ships, in the manufacture of implements and machinery, but especially for furniture, where entire chamber sets of maple rival those of oak. Maple is also used for shoe lasts and other form blocks; for shoe pegs; for piano actions, school apparatus, for wood type in show bill printing, tool handles, in wood carving, turnery, and scroll work, in fact it is one of our most useful woods. The maples are medium-sized trees, of fairly rapid growth, sometimes form forests, and frequently constitute a large proportion of the arborescent growth. They grow freely in parts of the Northern Hemisphere, and are particularly luxuriant in Canada and the northern portions of the United States.

57. Sugar Maple (Acer saccharum) (Hard Maple, Rock Maple). Medium- to large-sized tree, very common, forms considerable forests, and is especially esteemed. The wood is close-grained, heavy, fairly hard and strong, of compact structure. Heartwood brownish, sapwood lighter color; it can be worked to a satin-like surface and take a fine polish, it is not durable if exposed, and requires a good deal of seasoning. Medullary rays small but distinct. The "curly" or "wavy" varieties furnish wood of much beauty, the peculiar contortions of the grain called "bird's eye" being much sought after, and used as veneer for panelling, etc. It is used in all good grades of furniture, cabinetmaking, panelling, interior finish, and turnery; it is not liable to warp and twist. It is also largely used for flooring, for rollers for wringers and mangling machines, for which there is a large and increasing demand. The peculiarity known as "bird's eye," and which causes a difficulty in working the wood smooth, owing to the little pieces like knots lifting up, is supposed to be due to the action of boring insects. Its resistance to compression across the grain is higher than that of most other woods. Ranges from Maine to Minnesota, abundant, with birch, in the region of the Great Lakes.

58. Red Maple (Acer rubrum) (Swamp Maple, Soft Maple, Water Maple). Medium-sized tree. Like the preceding but not so valuable. Scattered along water-courses and other moist localities. Abundant. Maine to Minnesota, southward to northern Florida.

59. Silver Maple (Acer saccharinum) (Soft Maple, White Maple, Silver-Leaved Maple). Medium- to large-sized tree, common. Wood lighter, softer, and inferior to Acer saccharum, and usually offered in small quantities and held separate in the markets. Heartwood reddish brown, sapwood ivory white, fine-grained, compact structure. Fibres sometimes twisted, weaved, or curly. Not durable. Used in cooperage for woodenware, turnery articles, interior decorations and flooring. Valley of the Ohio, but occurs from Maine to Dakota and southward to Florida.

60. Broad-Leaved Maple (Acer macrophyllum) (Oregon Maple). Medium-sized tree, forms considerable forests, and, like the preceding has a lighter, softer, and less valuable wood than Acer saccharum. Pacific Coast regions.

61. Mountain Maple (Acer spicatum). Small-sized tree. Heartwood pale reddish brown, sapwood lighter color. Wood light, soft, close-grained, and susceptible of high polish. Ranges from lower St. Lawrence River to northern Minnesota and regions of the Saskatchewan River; south through the Northern States and along the Appalachian Mountains to Georgia.

62. Ash-Leaved Maple (Acer negundo) (Box Elder). Medium- to large-sized tree. Heartwood creamy white, sapwood nearly white. Wood light, soft, close-grained, not strong. Used for woodenware and paper pulp. Distributed across the continent, abundant throughout the Mississippi Valley along banks of streams and borders of swamps.

63. Striped Maple (Acer Pennsylvanicum) (Moose-wood). Small-sized tree. Produces a very white wood much sought after for inlaid and for cabinet work. Wood is light, soft, close-grained, and takes a fine polish. Not common. Occurs from Pennsylvania to Minnesota.

MULBERRY

64. Red Mulberry (Morus rubra). A small-sized tree. Wood moderately heavy, fairly hard and strong, rather tough, of coarse texture, very durable in contact with the soil. The sapwood whitish, heartwood yellow to orange brown, shrinks and checks considerably in drying, works well and stands well. Used in cooperage and locally in construction, and in the manufacture of farm implements. Common in the Ohio and Mississippi Valleys, but widely distributed in the eastern United States.

MYRTLE (See Laurel)

OAK

Wood very variable, usually very heavy and hard, very strong and tough, porous, and of coarse texture. The sapwood whitish, the heartwood "oak" to reddish brown. It shrinks and checks badly, giving trouble in seasoning, but stands well, is durable, and little subject to the attacks of boring insects. Oak is used for many purposes, and is the chief wood used for tight cooperage; it is used in shipbuilding, for heavy construction, in carpentry, in furniture, car and wagon work, turnery, and even in woodcarving. It is also used in all kinds of farm implements, mill machinery, for piles and wharves, railway ties, etc., etc. The oaks are medium- to large-sized trees, forming the predominant part of a large proportion of our broad-leaved forests, so that these are generally termed "oak forests," though they always contain considerable proportion of other kinds of trees. Three well-marked kinds—white, red, and live oak—are distinguished and kept separate in the markets. Of the two principal kinds "white oak" is the stronger, tougher, less porous, and more durable. "Red oak" is usually of coarser texture, more porous, often brittle, less durable, and even more troublesome in seasoning than white oak. In carpentry and furniture work red oak brings the same price at present as white oak. The red oaks everywhere accompany the white oaks, and, like the latter, are usually represented by several species in any given locality. "Live oak," once largely employed in shipbuilding, possesses all the good qualities, except that of size, of white oak, even to a greater degree. It is one of the heaviest, hardest, toughest, and most durable woods of this country. In structure it resembles the red oak, but is less porous.

65. White Oak (Quercus alba) (American Oak). Medium- to large-sized tree. Heartwood light brown, sapwood lighter color. Annual rings well marked, medullary rays broad and prominent. Wood tough, strong, heavy, hard, liable to check in seasoning, durable in contact with the soil, takes a high polish, very elastic, does not shrink much, and can be bent to any form when steamed. Used for agricultural implements, tool handles, furniture, fixtures, interior finish, car and wagon construction, beams, cabinet work, tight cooperage, railway ties, etc., etc. Because of the broad medullary rays, it is generally "quarter-sawn" for cabinet work and furniture. Common in the Eastern States, Ohio and Mississippi Valleys. Occurs throughout the eastern United States.

66. White Oak (Quercus durandii). Medium- to small-sized tree. Wood in its quality and uses similiar to the preceding. Texas, eastward to Alabama.

67. White Oak (Quercus garryana) (Western White Oak). Medium- to large-sized tree. Stronger, more durable, and wood more compact than Quercus alba. Washington to California.

68. White Oak (Quercus lobata). Medium- to large-sized tree. Largest oak on the Pacific Coast. Wood in its quality and uses similar to Quercus alba, only it is finer-grained. California.

69. Bur Oak (Quercus macrocarpa) (Mossy-Cup Oak, Over-Cup Oak). Large-sized tree. Heartwood "oak" brown, sapwood lighter color. Wood heavy, strong, close-grained, durable in contact with the soil. Used in ship- and boatbuilding, all sorts of construction, interior finish of houses, cabinet work, tight cooperage, carriage and wagon work, agricultural implements, railway ties, etc., etc. One of the most valuable and most widely distributed of American oaks, 60 to 80 feet in height, and, unlike most of the other oaks, adapts itself to varying climatic conditions. It is one of the most durable woods when in contact with the soil. Common, locally abundant. Ranges from Manitoba to Texas, and from the foot hills of the Rocky Mountains to the Atlantic Coast. It is the most abundant oak of Kansas and Nebraska, and forms the scattered forests known as "The oak openings" of Minnesota.

70. Willow Oak (Quercus phellos) (Peach oak). Small to medium-sized tree. Heartwood pale reddish brown, sapwood lighter color. Wood heavy, hard, strong, coarse-grained. Occasionally used in construction. New York to Texas, and northward to Kentucky.

71. Swamp White Oak (Quercus bicolor var. platanoides). Large-sized tree. Heartwood pale brown, sapwood the same color. Wood heavy, hard, strong, tough, coarse-grained, checks considerably in seasoning. Used in construction, interior finish of houses, carriage- and boatbuilding, agricultural implements, in cooperage, railway ties, fencing, etc., etc. Ranges from Quebec to Georgia and westward to Arkansas. Never abundant. Most abundant in the Lake States.

72. Over-Cup Oak (Quercus lyrata) (Swamp White Oak, Swamp Post Oak). Medium to large-sized tree, rather restricted, as it grows in the swampy districts of Carolina and Georgia. Is a larger tree than most of the other oaks, and produces an excellent timber, but grows in districts difficult of access, and is not much used. Lower Mississippi and eastward to Delaware.

73. Pin Oak (Quercus palustris) (Swamp Spanish Oak, Water Oak). Medium- to large-sized tree. Heartwood pale brown with dark-colored sap wood. Wood heavy, strong, and coarse-grained. Common along the borders of streams and swamps, attains its greatest size in the valley of the Ohio. Arkansas to Wisconsin, and eastward to the Alleghanies.

74. Water Oak (Quercus aquatica) (Duck Oak, Possum Oak). Medium- to large-sized tree, of extremely rapid growth. Eastern Gulf States, eastward to Delaware and northward to Missouri and Kentucky.

75. Chestnut Oak (Quercus prinus) (Yellow Oak, Rock Oak, Rock Chestnut Oak). Heartwood dark brown, sapwood lighter color. Wood heavy, hard, strong, tough, close-grained, durable in contact with the soil. Used for railway ties, fencing, fuel, and locally for construction. Ranges from Maine to Georgia and Alabama, westward through Ohio, and southward to Kentucky and Tennessee.

76. Yellow Oak (Quercus acuminata) (Chestnut Oak, Chinquapin Oak). Medium- to large-sized tree. Heartwood dark brown, sapwood pale brown. Wood heavy, hard, strong, close-grained, durable in contact with the soil. Used in the manufacture of wheel stock, in cooperage, for railway ties, fencing, etc., etc. Ranges from New York to Nebraska and eastern Kansas, southward in the Atlantic region to the District of Columbia, and west of the Alleghanies southward to the Gulf States.

77. Chinquapin Oak (Quercus prinoides) (Dwarf Chinquapin Oak, Scrub Chestnut Oak). Small-sized tree. Heartwood light brown, sapwood darker color. Does not enter the markets to any great extent. Ranges from Massachusetts to North Carolina, westward to Missouri, Nebraska, Kansas, and eastern Texas. Reaches its best form in Missouri and Kansas.

78. Basket Oak (Quercus michauxii) (Cow Oak). Large-sized tree. Locally abundant. Lower Mississippi and eastward to Delaware.

79. Scrub Oak (Quercus ilicifolia var. pumila) (Bear Oak). Small-sized tree. Heartwood light brown, sapwood darker color. Wood heavy, hard, strong, and coarse-grained. Found in New England and along the Alleghanies.

80. Post Oak (Quercus obtusiloda var. minor) (Iron Oak). Medium- to large-sized tree, gives timber of great strength. The color is of a brownish yellow hue, close-grained, and often superior to the white oak (Quercus alba) in strength and durability. It is used for posts and fencing, and locally for construction. Arkansas to Texas, eastward to New England and northward to Michigan.

81. Red Oak (Quercus rubra) (Black Oak). Medium- to large-sized tree. Heartwood light brown to red, sapwood lighter color. Wood coarse-grained, well-marked annual rings, medullary rays few but broad. Wood heavy, hard, strong, liable to check in seasoning. It is found over the same range as white oak, and is more plentiful. Wood is spongy in grain, moderately durable, but unfit for work requiring strength. Used for agricultural implements, furniture, bob sleds, vehicle parts, boxes, cooperage, woodenware, fixtures, interior finish, railway ties, etc., etc. Common in all parts of its range. Maine to Minnesota, and southward to the Gulf.

82. Black Oak (Quercus tinctoria var. velutina) (Yellow Oak). Medium- to large-sized tree. Heartwood bright brown tinged with red, sapwood lighter color. Wood heavy, hard, strong, coarse-grained, checks considerably in seasoning. Very common in the Southern States, but occurring North as far as Minnesota, and eastward to Maine.

83. Barren Oak (Quercus nigra var. marilandica) (Black Jack, Jack Oak). Small-sized tree. Heartwood dark brown, sapwood lighter color. Wood heavy, hard, strong, coarse-grained, not valuable. Used in the manufacture of charcoal and for fuel. New York to Kansas and Nebraska, and southward to Florida. Rare in the North, but abundant in the South.

84. Shingle Oak (Quercus imbricaria) (Laurel Oak). Small to medium-sized tree. Heartwood pale reddish brown, sapwood lighter color. Wood heavy, hard, strong, coarse-grained, checks considerably in drying. Used for shingles and locally for construction. Rare in the east, most abundant in the lower Ohio Valley. From New York to Illinois and southward. Reaches its greatest size in southern Illinois and Indiana.

85. Spanish Oak (Quercus digitata var. falcata) (Red Oak). Medium-sized tree. Heartwood light reddish brown, sapwood much lighter. Wood heavy, hard, strong, coarse-grained, and checks considerably in seasoning. Used locally for construction, and has high fuel value. Common in south Atlantic and Gulf region, but found from Texas to New York, and northward to Missouri and Kentucky.

86. Scarlet Oak (Quercus coccinea). Medium- to large-sized tree. Heartwood light reddish-brown, sapwood darker color. Wood heavy, hard, strong, and coarse-grained. Best developed in the lower basin of the Ohio, but found from Minnesota to Florida.

87. Live Oak (Quercus virens) (Maul Oak). Medium- to large-sized tree. Grows from Maryland to the Gulf of Mexico, and often attains a height of 60 feet and 4 feet in diameter. The wood is hard, strong, and durable, but of rather rapid growth, therefore not as good quality as Quercus alba. The live oak of Florida is now reserved by the United States Government for Naval purposes. Used for mauls and mallets, tool handles, etc., and locally for construction. Scattered along the coast from Maryland to Texas.

88. Live Oak (Quercus chrysolepis) (Maul Oak, Valparaiso Oak). Medium- to small-sized tree. California.

OSAGE ORANGE

89. Osage Orange (Maclura aurantiaca) (Bois d'Arc). A small-sized tree of fairly rapid growth. Wood very heavy, exceedingly hard, strong, not tough, of moderately coarse texture, and very durable and elastic. Sapwood yellow, heartwood brown on the end face, yellow on the longitudinal faces, soon turning grayish brown if exposed. It shrinks considerably in drying, but once dry it stands unusually well. Much used for wheel stock, and wagon framing; it is easily split, so is unfit for wheel hubs, but is very suitable for wheel spokes. It is considered one of the timbers likely to supply the place of black locust for insulator pins on telegraph poles. Seems too little appreciated; it is well suited for turned ware and especially for woodcarving. Used for spokes, insulator pins, posts, railway ties, wagon framing, turnery, and woodcarving. Scattered through the rich bottoms of Arkansas and Texas.

PAPAW

90. Papaw (Asimina triloba) (Custard Apple). Small-sized tree, often only a shrub, Heartwood pale, yellowish green, sapwood lighter color. Wood light, soft, coarse-grained, and spongy. Not used to any extent in manufacture. Occurs in eastern and central Pennsylvania, west as far as Michigan and Kansas, and south to Florida and Texas. Often forming dense thickets in the lowlands bordering the Mississippi River.

PERSIMMON

91. Persimmon (Diospyros Virginiana). Small to medium-sized tree. Wood very heavy, and hard, strong and tough; resembles hickory, but is of finer texture and elastic, but liable to split in working. The broad sapwood cream color, the heartwood brown, sometimes almost black. The persimmon is the Virginia date plum, a tree of 30 to 50 feet high, and 18 to 20 inches in diameter; it is noted chiefly for its fruit, but it produces a wood of considerable value. Used in turnery, for wood engraving, shuttles, bobbins, plane stock, shoe lasts, and largely as a substitute for box (Buxus sempervirens)—especially the black or Mexican variety,—also used for pocket rules and drawing scales, for flutes and other wind instruments. Common, and best developed in the lower Ohio Valley, but occurs from New York to Texas and Missouri.

POPLAR (See also Tulip Wood)

Wood light, very soft, not strong, of fine texture, and whitish, grayish to yellowish color, usually with a satiny luster. The wood shrinks moderately (some cross-grained forms warp excessively), but checks very little in seasoning; is easily worked, but is not durable. Used in cooperage, for building and furniture lumber, for crates and boxes (especially cracker boxes), for woodenware, and paper pulp.

92. Cottonwood (Populus monilifera, var. angulata) (Carolina Poplar). Large-sized tree, forms considerable forests along many of the Western streams, and furnishes most of the cottonwood of the market. Heartwood dark brown, sapwood nearly white. Wood light, soft, not strong, and close-grained (see Fig. 14). Mississippi Valley and West. New England to the Rocky Mountains.

93. Cottonwood (Populus fremontii var. wislizeni). Medium- to large-sized tree. Common. Wood in its quality and uses similiar to the preceding, but not so valuable. Texas to California.

A Large Cottonwood

Fig. 14. A Large Cottonwood. One of the Associates of Red Gum.