* Penfield's Notes on Determinative Mineralogy and Record of Mineral Tests. 



8to, paper, o 50 

 Rosenbusch*s Microscopical Pb3rsiosraphy of the Rock-making Minerals. 



(Iddings.) 8vo, 5 00 



* Tillman's Text-book of Important Minerals and Docks 8vo» 2 00 



Williams's Manual of Lithology 8vo, 3 00 



MINING. 



Beard's Ventilation of Mines izmo, 



Boyd's Resources of Southwest Virginia 8vo, 



Map of Southwest Virginia Pocket-book form, 



* Drinker's Tunneling, Explosive Compounds, and Rock Drills. 



4to, half morocco, 



Eissler's Modem High Explosives 8vo, 



Fowler's Sewage Works Analyses i2mo, 



Goodyear's Coal-mines of the Western Coast of the United States i2mo, 2 50 



Ihlseng's Manual of Mining 8vo, 4 00 



** Iles's Lead-smeltiog. (Postage 9c. additional.) x2mo, 2 50 



Kunhardt's Practice of Ore Dressing in Europe 8vo, i 50 



O'DriscoU's Notes on the Treafnent of Gold Ores 8vo, 2 00 



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



Wilson's Cyanide Processes X2mo, i 50 



Chlorination Process i2mo, i 50 



Hydraulic and Placer Mining r2mo, 2 00 



Treatise on Practical and Theoretical Mine Ventilation i2mo, x 25 



SANITARY SCIENCE. 



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



Folwell's Sewerage. (Designing, Construction, and Maintenance.) 8vo, 3 00 



Water-supply Engineering 8vo, 4 00 



Fuertes's Water and Public Health i2mo, i 50 



Water-filtration Works i2mo, 2 50 



Gerhard's Guide to Sanitary House-inspection i6mo, i 00 



Goodrich's Economical Disposal of Town's Refuse Demy 8vo, 3 50 



Hazen's Filtration of Public Water-supplies 8vo, 3 00 



Kiersted's Sewage Disposal i2mo, i 25 



Leach's The Inspection and Analysis of Food with Special Reference to State 



ControL (In preparation.) 

 Mason's Water-supply. (Considered Principally from a Sanitary Stand- 

 point.) 3d Edition, Rewritten 8vo» 4 00 



Examination of Water. (Chemical and Bacteriological.) i2mo, z 25 



Merriman's Elements of Sanitary^Engineering 8vo, 2 00 



Nichols's Water-supply. (Considered Mainly from a Chemical and Sanitary 



. Standpoint.) (1883.) 8vo, 2 50 



Ogden's Sewer Design x2mo, 2 00 



* Price's Handbook on Sanitation i2mo, i 50 



Richards's Cost of Food. A Study in Dietaries i2mo, 1 00 



Cost of Living as Modified'by Sanitary~Science i2mo, x 00 



Richards and Woodman's Air, Water, and Food from a Sanitary Stand- 

 point 8vo, 2 00 



* Richards and Williams's The Dietary"Computer 8vo, i 50 



Rideal's Sewage and Bacterial Purification of Sewage 8vo, 3 so 



Tumeaure and Russell's Public Water-supplies 8vo, s 00 



Whipple's Microscopy of Drinking-water 8vo, 3 50 



Woodhull's Notes and Military Hygiene i6mo, x 50 



15 



