CHING QF SCIENCE.— Price $2.00, free of postage to any address in the world. Report of the British Association Committee appointed ("A circular of 32 Speer eck the full ae 9 Con- for the purpose of i inquir ing into and reporting upon the any one in any part of the i, gent bym tents of bie) « pat… … ENGINEERS AND FIREMEN. ENGINEERS’ POCKET - BOOK By STEPHEN ROPER, Engineer. 740 Pages. 680 Illustrations. Each Work Fully Illustrated. By CHARLES H. HASWELL. ——~_—_ PRICE, by mail, postpaid, . .. » $4.00 Written in plain, practical language, devoid of theories or mathematical formulas. Mechanics’…
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