16mo, cloth extra 1 75

CALDWELL, Prof. GEO. C., and BRENEMAN, Prof. A. A.—Manual of Introductory Chemical Practice.

For the use of Students in Colleges and Normal and High Schools. Third edition revised and corrected. 8vo, cloth, illustrated. New and enlarged edition 1 50

CAMPIN, FRANCIS.—On the Construction of Iron Roofs.

8vo, with plates, cloth 2 00

CASEY, Brig.-Gen. SILAS—U. S. Infantry Tactics.

Vol. I.—School of the Soldier; School of the Company; Instruction for Skirmishers. Vol. II.—School of the Battalion, Vol. III.—Evolutions of a Brigade; Evolutions of a Corps d'Armée. Lithographed plates. 3 vols. 24mo, cloth 1 50

CHAUVENET, Prof. W.—New Method of Correcting Lunar Distances, and Improved Method of Finding the Error and Rate of a Chronometer, by Equal Altitudes.

8vo, cloth 2 00

CHURCH, JOHN A.—Notes of a Metallurgical Journey in Europe.