Copper. By
Walter Lee Brown. Seventh edition. 533 pages. Illustrated. 12mo.
cloth. Chicago,1897. $2 60

ASTRONOMY. A New Astronomy. By David P. Todd. 12mo, cloth. 480
pages. Profusely illustrated. New York, 1898. $1 50

BEVERAGES. Standard Manual for Soda and other Beverages. A
Treatise especially adapted to the requirements of Druggists and
Confectioners. By A. Emil Hiss. 12mo, cloth. 260 pages. Chicago,
1897. $4 00

BICYCLE REPAIRING. A Manual compiled from articles in "The Iron
Age." By S. D. V. Burr. 8vo, cloth. 166 pages. Fully illustrated.
New York. $1 00

BOOT MAKING AND MENDING. Including Repairing, Lasting and
Finishing. With numerous engravings and diagrams. Edited by Paul
N. Hasluck. (Work Handbooks.) 16mo, cloth. 160 pages, fully
illustrated. New York, 1897. $0 50

BOTANY. A Text Book of General Botany. By Carlton C. Curtis,
Tutor in Botany in Columbia University. 8vo, cloth. 359 pages,
illustrated. New York, 1897. $3 00

BREWING CALCULATIONS. Gaging and Tabulation, Formulae, Tables and
General Information for Brewers, and Excise Officers Surveying
Breweries. By Claude H. Bater. 64mo, vest pocket size. 340 pages.
London, 1898. $0 60

BRIDGES. DePontibus: A Pocket Book for Bridge Engineers. By J. A.
L. Waddell. 12mo, leather. Pocketbook form with flap. 403 pages.
New York, 1898. $3 00

CARPENTRY AND JOINERY. A Textbook for Architects, Engineers,
Surveyors and Craftsmen. Fully illustrated and written by
Banister F. Fletcher and H. Philip Fletcher. 12mo, cloth. 293
pages. London, 1898. $2 00

CHEMISTRY FOR PHOTOGRAPHERS. By Chas. F. Townsend. Illustrated.
12mo, cloth. New York, 1897. $0 75

COMPRESSED AIR. Practical Information upon Air Compression and
the Transmission and Application of Compressed Air. By Frank
Richards. 12mo, cloth. 203 pages. Illustrated. New York. $1 50

OUR LARGE CATALOGUE OF AMERICAN AND FOREIGN SCIENTIFIC AND TECHNICAL
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