* Walke's Lectures on Explosives ......... ......................... 8vo, 4 oo 



* Wheeler's Siege Operations and Military Mining ..................... 8vo, 



Winthrop's Abridgment of Military Law ............................ i2mo. 



Woodhull's Notes on Military Hygiene ............................. i6mo, 



Young's Simple Elements of Navigation .................... i6mo. morocco, 



Second Edition, Enlarged and Revised ................ i6mo, morocco, 



ASSAYING. 



Fletcher's Practical Instructions in Quantitative Assaying with the Blowpipe. 



1 2mo, morocco, I 50 



Furman's Manual of Practical Assaying 8vo, 3 oo 



Miller's Manual of Assaying i2mo, i oo 



O'Driscoll's Notes on the Treatment of Gold Ores 8vo. a oo 



Ricketts and Miller's Notes on Assaying 8vo, 3 oo 



Ulke's Modern Electrolytic Copper Refining 8vo, 3 oo 



Wilson's Cyanide Processes 1 2mo, i 50 



Chlorination Process i2mo, i 50 



ASTRONOMY. 



Comstock's Field Astronomy for Engineers 8vo, a 50 



Craig's Azimuth 4to, 3 50 



Doolittle's Treatise on Practical Astronomy 8vo, 4 oo 



Gore's Elements of Geodesy 8vo, a 50 



Hayford's Text-book of Geodetic Astronomy 8vo, 3 oo 



Merriman's Elements of Precise Surveying and Geodesy 8vo, a 50 



* Michie and Harlow's Practical Astronomy 8vo, 3 oo 



* White's Elements of Theoretical and Descriptive Astronomy xarno. a oo 



BOTANY. 



Davenport's Statistical Methods, with Special Reference to Biological Variation. 



i6mo, morocco, I 35 



Thome and Bennett's Structural and Physiological Botany i6mo, a 35 



Westermaier's Compendium of General Botany. (Schneider.) 8vo, a oo 



CHEMISTRY. 



kdriance's Laboratory Calculations and Specific Gravity Tables 12010, t 35 



Allen's Tables for Iron Analysis 8vo, 3 oo 



Arnold's Compendium of Chemistry. (Mandel.) (In preparation.') 



Austen's Notes for Chemical Students i2mo, i 50 



Bernadou's Smokeless Powder. Nitro-cellulose, and Theory of the Cellulose 



Molecule lamo, 2 50 



Bolton's Quantitative Analysis 8vo, i 50 



* Browning's Introduction to the Rarer Elements 8vo, i 50 



Brush and Penfield's Manual of Determinative Mineralogy 8vo, 4 oo 



Classen's Quantitative Chemical Analysis by Electrolysis. (Boltwood.) . . . 8vo, 300 



Cohn's Indicators and Test-papers lamo, a oo 



Tests and Reagents 8vo, 3 oe 



Copeland's Manual of Bacteriology. (In preparation.) 



Craft's Short Course in Qualitative Chemical Analysis. (Schaeffer.). . . .i2mo, i 50 



Drechsel's Chemical Reactions. (Merrill.) I2mo, i 35 



Duhem's Thermodynamics and Chemistry. (Burgess.) 8vo, 4 OO 



Eissler's Modern High Explosives 8vo, 4 oo 



3 



