* Walke's Lectures on Explosives 8vo, 4 00 



* Wheeler's Siege Operations and Military Mining 8vo, 2 00 



Winthrop's Abridgment of Military Law i2mo, 2 50 



Woodhuirs Notes on Military Hygiene i6mo, 1 50 



Young's Simple Elements of Navigation i6mo, morocco, 1 00 



Second Edition, Enlarged and Revised i6mo, morocco, 2 00 



ASSAYING. 



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



i2mo, morocco, 1 50 



Furman's Manual of Practical Assaying 8vo f 3 op' 



Miller's Manual of Assaying . . .* i2mo, 1 00 



O'Driscoll's Notes on the Treatment of Gold Ores 8vo, 2 00 



Ricketts and Miller's Notes on Assaying 8vo, 3 00 



Ulke's Modern Electrolytic Copper Refining 8vo, 3 00 



Wilson's Cyanide Processes i2mo, 1 so 



Chlorination Process i2mo, 1 50 



ASTRONOMY. 



Comstock's Field Astronomy for Engineers 8vo, 2 50 



Craig's Azimuth 4to, 3 50 



Doolittle's Treatise on Practical Astronomy 8vo f 4 00 



Gore's Elements of Geodesy 8vo, 2 50 



Hayford's Text-hook of Geodetic Astronomy 8vo, 3 00 



Merriman's Elements of Precise Surveying and Geodesy 8vo, 2 50 



* Michie and Harlow's Practical Astronomy 8vo, 3 00 



* White's Elements of Theoretical and Descriptive Astronomy i2mo, 2 00 



BOTANY. 



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



i6mo, morocco, 1 23 



Thome 1 and Bennett's Structural and Physiological Botany i6mo, 2 25 



Westermaier's Compendium of General Botany. (Schneider.) 8vo, z 00' 



CHEMISTRY. 



Variance's Laboratory Calculations and Specific Gravity Tables i2mo, r 25 



Mien's Tables for Iron Analysis ........ 8vo, 3 00 



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



Austen's Notes for Chemical Students i2mo, 1 so 



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



Molecule I2mb, 2 50 



Bolton's Quantitative Analysis 8voV 1 "50 



* Browning's Introduction to the Rarer Elements 8vo, 1 go 



Brush and Penfield's Manual of Determinative Mineralogy 8vo, 4 00 



Classen's Quantitative Chemical Analysis by Electrolysis. (Boltwood.) . . 8vo, 3 00; 



Cohn's Indicators and Test-papers i2mo, 2 00 



Tests and Reagents 8vor 3 op , 



Copeland's Manual of Bacteriology! (Jn preparation.) , 



Craft's Short Course in Qualitative Chemical Analysis. (Schaefier.). . . .i2mo, 1 so 



Drechsel's Chemical Reactions. (Merrill.) i2mo, 1 25 



Duhem's Thermodynamics and Chemistry. (Burgess.) 8vo, 4 00 



Eissler's Modern High Explosives 8vo, 4 00 



3 



