Molesworth and Hurst.—The pocket-book of pocket-books. Being Hurst's and Molesworth's pocket-book bound together in full Russia leather, 32mo., round corners, gilt edges, $5.00.

Cutler and Edge.—Tables for setting out curves from 100 feet to 5,000 feet radius. Useful for setting out roads, sewers, walls, fences and general engineering work, 16mo., cloth, $1.00.

Maycock.—Practical electrical notes and definitions, for the use of engineering students and practical men, 286 pages, illustrated, 32mo., cloth, 75c.*

Thompson's Electrical Tables.—A valuable little reference book for engineers, electricians, motor inspectors and others interested in electrical engineering. Illustrated, vest pocket edition, 64mo., roan, 50c.

Dearlove.—Tables to find the working speed of cables; comprising also data as to diameter, capacity and copper resistance of all cores. 32mo., cloth, 80c.

Molesworth.—Metrical tables, weights and measures. 57 pages, 32mo., cloth, 60c.

Brooks.—French measures and english equivalents. 32mo., 40c.

Molesworth.—Pocket-book of useful formulÆ and memoranda for civil and mechanical engineers. 781 pages, illustrated, 32mo, leather, $2.00.*

George.—Pocket-book of calculation in stresses, etc., for engineers, architects and general use. 140 pages, illustrated, 32mo., cloth, $1.40.

Sexton.—Pocket-book for boiler makers and steam users, board of trade surveyors, and the general steam-using public. 287 pages, illustrated, 32mo., leather, $2.00.

Hurst.—A hand-book of formulÆ, tables and memoranda for architectural surveyors. 477 pages, illustrated, 32mo., leather, $2.00.

Jordan.—Tabulated weights of angle, tee and bulb iron and steel and other information for the use of naval architects, shipbuilders and manufacturers. 579 pages, 32mo., leather, 1896, $3.00.

Spons'.—Tables and memoranda for engineers, by Hurst. The vest pocket edition, 64mo., roan, 50c.

Mackesy.—Tables of barometrical heights to 20,000 feet, specially adapted for the use of officers on service, civil engineers and travellers. With 3 diagrams, 32mo., cloth, $1.25.

Bayley.—Pocket-book for chemists, chemical manufacturers, metallurgists, dyers, distillers, brewers, sugar refiners, photographers, students, etc., etc. 32mo., roan, $2.00. In the press.