 
INTRODUCTION.The movement in educational reform at present is in the direction of unification. It is held that in framing the programme for any grade the interest not only of the next higher but of all higher grades must be considered. This is done not solely that those who are to enter the higher grades may be directly prepared for their more advanced studies, but especially because it is felt that better work will thus be done for those whose school training is soon to terminate. For the child's education is never finished and a mind rightly directed at the start will gather from its practical experience that with which it may develop and augment the resources and the ideas already received. No education can be sound which teaches anything that is inconsistent with the more advanced truths, however complex and profound those truths may be. There should be no unlearning in the course of an education nor any expenditure of time on that which has no permanent value. It is of importance therefore to consider in connection with the study of any special subject what the problems are which lie at the end of the educational journey and what basis will be needed in the child's maturer thought. There will thus be the inspiration of the goal to be attained and guidance in the selection of the most helpful methods. There is scarcely any subject that has so many practical and scientific aspects as the subject of color. Its great importance in the arts and its contribution to the enjoyment of life are It will be readily seen that there must be a well developed and carefully trained color sense at the basis of an education which is to lead to the consideration of these and similar chromatic problems. As in the development of any special perceptive power, a great deal depends upon making a beginning If the instruction in color is to be systematic and efficient, it is unquestionable that there must be a simple nomenclature for the standard colors; and for the teacher's guidance at least as well as for the use of the older pupils, a scientifically accurate system of describing any required modification of these recognized standards. The system presented in this book is based on the well-known principle of the Maxwell wheel and has been elaborated by one who has had in view not only the theory of the subject but also the practical possibilities of its use in preparing educational material. This fact, I feel sure, greatly enhances the value of the conclusions at which he arrives. Henry Lefavour. Williams College, December 20, 1894. PREFACE.Ever since Newton discovered the solar spectrum it has been referred to in a poetic way as Nature's standard of color. But as soon as the author attempted, some twelve years ago, to use it practically by making pigmentary imitations of the spectrum colors as standards they were decried as vulgar and inartistic. Under such circumstances it was a great pleasure to him to hear a celebrated art professor answer his inquiry if the solar spectrum is the proper place to look for standards of color with the emphatic assertion, "Certainly, there is no other place to go." Where there are no standards there can be no measurements, and if in color we have no measurements of effects, no records can be made, and hence no comparisons of results at various places and times, and consequently no discussion and little progress. Because there have been no accepted standards and no measurements of color very little has thus far been decided regarding psychological color effects. In drawing, as at present taught in our best schools from the kindergarten to the university, the foundation of art in black and white is laid in form study. From the drawing teachers we learn that a good touch and a fine sense for light and shade in all their subtle relations to each other are without value, unless due care has been given to the commonplace consideration of lengths and directions of lines, that is to say to the measurement of lines and angles, and to the laws of perspective. We cannot have measurements without standards. By the foot or the metre we measure lines and by the divided circle we measure angles. Color is one of the first things to attract the attention of the infant, almost as soon as a sound and long before form appeals to him, so that a collection of colored papers will often prove more interesting and instructive than a picture book to the baby, while the graduate from a two year's course in the kindergarten may have a better color sense than is at present enjoyed by the average business or professional man. If we could determine the colors used by the great masters in the past, we could add much to our knowledge of the fine arts; and if we knew what colors Chevreul, the master dyer of the Gobelins Tapestry works, refers to in his writings, and which he indicated by hundreds of numbered samples filed away in his cabinet, we should in this generation have a wonderful fund of information to increase our knowledge of harmonies, on which to base our study of color in the industrial arts. But alas! the paintings of the old masters have faded and the great dyer had no language in which to describe his colors in his writings, and therefore it is claimed that little or no advance in color perception has been made in modern times, if indeed we have held our own. The further assertion is made that those semi-civilized nations whose drawings are the least artistic greatly surpass us in natural color perceptions. If color is the one thing in which we are deficient and in which we are making no advance, is it not necessary that we adopt a new line of operations for our color instruction in the primary grades? It is self-evident that in primary work highest art is not expected in either literature, music, drawing or painting, When through the introduction of colored papers in the kindergartens and primary schools the teachers began to call for better assortments of colors in their papers than were to be found in the market, and some of us in the field attempted to meet their wants, the solution of the problem seemed almost a hopeless task, because no two wanted the same colors; each teacher was a law to herself and one thought a color "just lovely" which another declared "perfectly horrid." According to the early theories then in vogue the first colors called for were red, yellow and blue for primaries, but no two persons were sure just what they wanted for either of these, and there was no authority to be referred to for a decision. In this strait, which was practically a serious difficulty, the artists were appealed to for a decision as to the three "primary colors," and also for examples showing in what proportions the "ideal primaries" must be mixed to produce the "ideal secondaries." But in this there was no satisfaction because hardly two agreed in the primaries and necessarily the secondaries were much less definite, which was the result that should have been expected. It is a self-evident proposition that if two indefinite primaries are combined in indefinite proportions the possible secondaries which may thus be produced must be exceedingly numerous, and if this idea is carried out in the production of tertiaries by the combination of the secondaries the resulting colors may be almost infinite. In view of the indifference of the artists and the popular ignorance regarding the subject the solution of this question and the discovery of any solid basis on which to formulate a system of elementary color instruction seemed very problematical. But after much experimenting and many conferences with artists and scientists a basis for operation was It is prepared in response to inquiries from primary school teachers for a clear and condensed explanation of the Bradley System of Color Instruction. The aim is to offer a definite scheme and suitable material for a logical presentation of the truths regarding color in nature and art to the children of the primary schools. Much of this instruction is so simple that it should be familiar to children who have had kindergarten training and has therefore already been explained in substantially the same form in "Color in the Kindergarten." A few years ago it might well have been thought necessary to preface a treatise on the subject with arguments to prove that color is a legitimate object for school instruction, but today this is not a question with thoughtful educators, whether considered from the practical, industrial or Æsthetic standpoint. With the establishment of professorships of practical psychology and the equipment of laboratories, provided with delicate and expensive apparatus for making and recording tests, there comes with increasing force the demand for some means by which the experiments in color made in various localities may be unified both as to the colors used and the terms and measurements for recording the result. It is the hope of the author that the system here outlined may be the initial step in gathering together such facts regarding color effects as will form a fund of knowledge little dreamed of at the present day. Graphic Image The Theory of Color.In order to place the study of color on a broad and safe foundation, the work must commence at the bottom with a rational presentation of the subject, based on experiments and the use of color material. We must intelligently consider the relation that exists between the pure science of light which is the source of all color and the use of color materials with their effect on our color perceptions. While it is true in all study that there is here and there found a natural genius in some line of work who seems to have such inborn perceptions as to require little or no logical instruction in his special line, it is also manifest that the masses must gain their knowledge through a systematic presentation of the subject, if they secure it at all. Therefore with the growth of modern pedagogics the laboratory work of the psychologist has become a necessity. This consists in collecting and tabulating the results of hundreds and thousands of experiments regarding any subject under investigation, and the averaging of these to form theories and laws. In making these experiments there must be standards and measurements on which they may be based and some nomenclature in which to make the records; and the standards, measurements and nomenclature adopted must be common to those who desire to compare their results made in different places at different times. From the results of many physical experiments properly measured and recorded certain psychological theories are deduced. These experiments are tried on hundreds and thousands of individuals and the average results establish the theories, which will ultimately stand or fall according to the truth So in color perceptions it is not necessary that we know anything of the theories of color in order to see colors, and if endowed by nature with a natural genius for color, education in color may not be necessary, but if there is to be education in color which can be transmitted to a second party there must be some standards of colors and some measurement of color effects which can be recorded in accepted terms. Why Artists and Scientists Have Disagreed.In the realm of art there is no necessity for any purely scientific analysis of sunlight, which is the origin of natural colors, because all the practical value of color is found in its Æsthetic effects on the mind, and in order to enjoy these even in the highest degree it is not necessary that we understand the scientific origin of the colors, any more than it is necessary for the artist to know the chemical composition of his pigments in order to produce best effects with them on his canvas. Because of this almost self-evident fact, artists have as a rule been very impatient when any reference has been made to the science of color in connection with color education, believing that color is an exception to the general subjects of study to such a degree that it lies outside of all scientific investigations. Consequently they have not been in sympathy with the physio-psychological investigations which have been prosecuted with such promising results in other lines, when such investigations have been proposed regarding color. While it is not essential for best results in his own work that an expert artist shall know anything of the science of color, still if he is to communicate his knowledge of art to any others except his personal pupils, he must have some language in which to make known his ideas, and on the same grounds if any psychological When the well known Newton and Brewster theory of three primary colors red, yellow and blue, was advocated by those scientists there appeared to be something of interest and value in it for the artists also, because with the three pigments red, yellow and blue, they seemed to be able to confirm the truth of the scientific theories regarding the spectrum colors. But the scientists have long been convinced that there is no truth in this theory and have quite generally accepted the Young-Helmholtz idea of three other color perceptions red, green and violet, from which they claim all color vision is produced, and which they call fundamental colors. This more modern theory has seemed so far removed from the realm of the artists and the colorists that they have not been able to see anything in it of truth or value to them, and so have continued to repeat the old, old story of the three primaries red, yellow and blue, from which the secondaries orange, green and purple are made etc., etc., all of which is the more pernicious when accepted as a correct theory because of its seeming approximation to the facts. And yet there is not in it all any scientific truth on which to build a logical system of color education, and some of the effects which are considered prominent arguments for the system are directly opposed to well known facts in the science of color. Consequently, the artist has failed to gain from the investigations of the scientists anything to aid him in his pigmentary work, and the scientist has not been interested in the Æsthetic ideas of the artists which in fact he has generally been unable to fully appreciate, from lack of training and associations. The system of color instruction here presented for primary grades is based on the results of careful study and experiment for many years in which the attempt has been made to bring the scientist and the artist on to common ground, where Thus the feeling for color which every true artist has, may be to a certain extent analyzed so that it can be understood by the scientist and recorded for the benefit of fellow artists one hundred or a thousand miles away and in time an aggregation of facts regarding the psychological effects of color collected which will form the beginning of a valuable fund of color knowledge to be increased from age to age. The Speculations of the Past.Ever since Newton produced the prismatic solar spectrum, the so-called science of color as applied to pigments and coloring, has been a most curious mixture of truth, error and speculation. It was supposed by Newton and Brewster that in the solar spectrum the colors were produced by the over-lapping of three sets of colored rays red, yellow and blue. The red rays at one end were supposed to overlap or mix with the yellow rays to make the orange, and on the other side of the yellow the blue rays were supposed to combine with the yellow to produce green. Following the same theory in pigmentary colors, it has been claimed that all colors in nature may be produced by the combination of pigments in these three colors red, yellow and blue, and hence they have been called primary colors. It is still claimed by the advocates of this theory that from the three primaries red, yellow and blue the so-called secondaries orange, green and purple can be made, and that the secondaries are complementary to the primaries in pairs; the orange to the blue, the green to the red and the purple to the yellow. By similar combinations of the secondaries it is claimed that three other colors, in themselves peculiar, and different from the first six, may be made, the orange and green forming citrines, orange and violet russets, and green and violet olives Because the red, yellow and blue theory would not stand the test of scientific investigation the Young-Helmholtz theory of three other primaries red, green and violet, has been quite generally adopted by the scientists of the past generation. What the Primary Teacher Needs to Consider.All these discussions of the scientists are intensely interesting and no doubt of great importance in the line to which they pertain, but practically neither the artists nor the primary school teachers care for all these theories and discussions and because the scientists have closely confined themselves to these lines, the artists and teachers have seen nothing of value to them in their theories. In going to the solar spectrum for standards on which to base pigmentary standards, we have given little attention to these various theories in their details, but the one fact of science has received careful attention, namely, that all color effects in nature and art are produced by light reflected from material surfaces. Therefore, inasmuch as the light reflected from any surface must be affected by both the material color of the surface and the color of the light which illuminates the surface, it is necessary that every one having to do with this subject be informed as to what color must be expected to result from given conditions. In order that this phase of the subject be discussed and thus more fully understood, there must be a terminology or nomenclature in which to express the results produced by given conditions, With standards and a nomenclature, color will be placed on an equal footing with other subjects, so that perceptions of color effects may be recorded and discussed with much of the definiteness with which we treat form and tone. Because this has not heretofore been possible, comparatively little advance has been made during the last two decades in the Æsthetic consideration of material color which is the only practical phase of the subject, and if any greater progress is to be achieved in the future it evidently must be along new lines. From the nursery to the university we are constantly asking two questions, "What is it?" and "Why is it?" and this is what the educator from the Kindergarten to the College is called upon to answer. In his laboratory the psychologist is collecting physical facts by tests regarding the powers of the eye and the ear, the sense of touch, weight, memory, etc., and these experiments when classified, arranged and averaged, furnish a basis for formulating theories, all of which is called psychology. In vision, form and color play the principal parts, in fact cover the whole ground if we include light and shade in color where it belongs. Experiments regarding form can be and have long been very definitely recorded but this has not been true with color. To Froebel must be given the honor of introducing logical form study into primary education, and on this has been built the present admirable system of drawing in our higher grades of schools, and the introduction of the standard forms in solids It is not expected that the children in the lowest grades will learn much of the science of color, but it is desirable that the teachers have such knowledge of it that they will not unconsciously convey to the children erroneous impressions which must be unlearned later in life. Concerning the Solar Spectrum.More than two hundred years ago Sir Isaac Newton discovered that a triangular glass prism would transform a beam of sunlight into a beautiful band of color. If the prism is held in a beam of sunlight which enters a moderately lighted room, there will appear on the walls, ceiling or floor, here and there, as the glass is moved, beautiful spots in rainbow colors. If the room is darkened by shutters, and only a small beam of light is admitted through a very narrow slit and the prism properly adjusted to receive this beam of light, a beautiful band of variegated colors may be thrown on to a white ceiling or screen, and this effect is called a prismatic solar spectrum. A perfect solar spectrum once seen under favorable conditions in a dark room is a sight never to be forgotten. The accompanying illustration shows the relative positions of the parts named. A is the beam of light as it enters the room. B is the triangular prism. The dotted lines represent groups of rays extending to the vertical band of colors indicated by the letters V for violet at the top, then blue, green, yellow, orange to red at the bottom. The explanation of this phenomenon is that the beam of sunlight is composed of a great number of different kinds of rays, Prism
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