HEXRY CAREY BAIRD'S CATALOGUE. 15 



JOBELL. ERNL MINERALOGY SIMPLIFIED : 



A short method of Determining and Classifying Minerals, by 

 means of simple Chemical Experiments in the Wet Way. 

 Translated from the last German Edition of F. VON KOBELL, 

 with an Introduction to Blowpipe Analysis and other addi- 

 tions. By HENRI ERNI, M. D., Chief Chemist, Department of 

 Agriculture, author of " Coal Oil and Petroleum." In one 

 volume, 12mo. . . . . . . . $2 60 



TAFFINEUR. A PEACTICAL GUIDE TO HYDRAULICS FOB 

 *-* TOWN AND COUNTRY; 



Or a Complete Treatise on the Building of Conduits for Water 

 for Cities, Towns, Farms, Country Residences, Workshops, etc. 

 Comprising the means necessary for obtaining at all times 

 abundant supplies of Drinkable Water. Translated from 

 the French of M. JULES LAFFINEUR, C. E. Illustrated. (In 

 press.) 



TANDRIN. A TREATISE ON STEEL : 



Comprising its Theory, Metallurgy, Properties, Practical Work, 

 ing, and Use. By M. H. C. LANDRIN, Jr., Civil Engineer. 

 Translated from the French, with Notes, by A. A. FESQUET, Che- 

 mist and Engineer. With an Appendix on the Bessemer and the 

 Martin Processes for Manufacturing Steel, from the Report of 

 Abram S. Hewitt, United States Commissioner to the Universal 

 Exposition, Paris, 1867. 12mo $3 00 



T ARKIN. THE PRACTICAL BRASS AND IRON FOUNDER'S 

 *-* GUIDE : 



A Concise Treatise on Brass Founding, Moulding, the Metals 

 and their Alloys, etc. ; to which are added Recent Improve- 

 ments in the Manufacture of Iron, Steel by the Bessemer Pro- 

 cess, etc. etc. By JAMES LARKIN, late Conductor of the Brass 

 Foundry Department in Reany, Neafie & Co.'s Penn Works, 

 Philadelphia. Fifth edition, revised, with Extensive addi- 

 tions. In one volume, 12mo $2 25 



