Practical book on the making of wood patterns and core-boxes for foundry castings. Explains and illustrates in detail actual operations in laying out and constructing patterns and core-boxes; the tools, machinery and materials employed, and contains other information valuable to the pattern maker and student. Fully illustrated with original halftones and line drawings.
Author is instructor in pattern making, Pratt Institute, and writes from experience as a practical pattern maker.
The world’s food resources. J. R. Smith. Holt. 634p. $3.50.
An interesting book on the world’s food resources of all kinds; where and how produced, the possibilities of increasing production and of employing foods not now estimated at their real value. Considers also the cost of production of various foodstuffs in comparison with their nutritive values and, in general, the whole question of food supply from an economic standpoint.
Author is professor of economic geography in Columbia University.
Industrial Spanish. C. F. Sparkman. Allyn. 259p. $1.40.
A Spanish reader entirely in the Spanish language, providing reading exercises relating to the trades, business, manufactures, engineering, agriculture, professions, etc., with many illustrations. A section on grammar and a vocabulary are appended.
Author is assistant professor of Spanish, Purdue University.
The practice of presswork. C. R. Spicher. Pittsburgh. Author. 240p. $3.60.
Authoritative, practical book describing the mechanism and operation of various types of printing presses; the “make-ready” operation for printing; printing inks; rollers, etc. Contains chapters on automatic feeders, paper-making, typesetting machines, photo-engraving, electric drive.