By Mechanical World

FROM THE PREFACE: “In the twenty. first annual issue of this work some important changes have been made. The notes on electrical transmission of power have been omitted, and this has allowed us to introduce a deal of new matter. In particular, attention is directed to a lengthy section on Condensing Plant and to another on the important subject of Superheating. The matter on Reverberatory and Reheating Furnaces has been rewritten and greatly extended, a section on Friction Clutches has been introduced, and several new tables have been added. These pertain to such matters as Morse Standard Tapers, British Standard Pipe Flanges, Pipe Threads, &c. Some of the standing tables have been modified, and will be found more convenient to use; several new illustrations have been introduced, and the whole work revised…”

Manchester: Emmot & Compan. 1908. 380p.

By I. H. Morris

FROM THE PREFACE: This little book has been prepared to meet the wants of those students who only require the Geometry necessary for the Art Student's course. The work necessary for the Second and Third Grade Art Certificates is fully covered, and the Student who has thoroughly mastered the contents of the book will tind himself well equipped either for examination or for taking up a more advanced course of the subject. The book contains over seven hundred figures arranged in a convenient form, and a very complete and exhaustive collection of exercises, and covers more ground than is absolutely necessary for the South Kensington Examination in Geometry. The chapter on Solid Geometry has been made unusually full, as the Author's experience is that one of the student's chief ditticulties is the want of sufficient variety of examples in this important branch of the subject.

London. Longmans Green and Co. 1918. 265p.

By John Courtney

Revised and Edited by D. Kinnear Clark. 5th. edition. Drawing, templating, and calculating boiler work and tank work. Rules for the evaporative power and the horse power of steam bollers, and the proportions of safety-valves; and useful tables of rivet joints, of circles, weights of metals, etc.

London. Crosby Lockwood And Son. 1898. 180p.

Mattie Phipps Todd

A Manual for School and Home, of the Motley School, Minneapolis. Introduction by Alixwe W. Cooley formerly Supervisor of Primary Schools, Minneapolis. With 57 illustrations. “We believe that man is a trinity, three in one — head, heart, and hand, one soul made manifest…that life is wisest spent where the strong, working hand makes strong the working brain…” (1902) 149 pages.