MATHEMATICS 



PRACTICAL MATHEMATICS. By C. R. Dooley, Westinghouse 

 Electric and Manufacturing Compan-, Pittsburgh. {In prepara- 

 tion.) 



A SHOP MATHEMATICS FOB MACHINISTS. By R. W. 



BuRNHAM, Instructor in Machine Worlj, Pratt Institute Evening 

 School. 5 by 7. 175 figures. Cloth, 



PRACTICAL SHOP MECHANICS AND MATHEMATICS. 



By James F. Johnson, Superintendent of the State Trade School, 

 Bridgeport, Conn, viii + 130 pages, 5 by 7. 81 figures. Cloth, 

 $1.00 net. 



ARITHMETIC FOR CARPENTERS ANB BUILDERS. By 



R. BuHDETTE Dale, Assistant Professor in charge of Vocational 

 Courses in Engineering and Correspondence Instruction, Iowa State 

 College, ix+231 pages, 5 by 7. 109 figures. Cloth, $1.25 net. 



AGRICULTURE 



POULTRY. By Professor J. C. Graham, Massachusetts Agricultural 

 College. {In preparation.) 



SOILS. By Professor A. G. McCall, Ohio State University. {In 

 preparation.) 



AGRICULTURAL CHEMISTRY. By Professor T. E. Keitt, 

 Clemson Agricultural College. {Ready September, 1915.) 



INJURIOUS INSECTS. By Dean E, D. Sanderson and Professor 

 L. M. Peairs, West Virginia. University. {Ready September, 1915.) 



AGRICULTURAL DRAFTING. By Charles B. Howe, M.E. 

 46 pages, 8 by lOM- 45 figures, 22 plates Cloth, $1.25 net. 



STUDIES OF TREES. By J. J. Levison, Forester, Park Depart- 

 ment, Brooklyn, N. Y. x+253 pages, 5M by 8. 156 half-tone 

 illustrations. Cloth, $1.60 net. 



MARKET GARDENING. By Professor F. L. Yeaw, Oasis Farm 

 & Orchard Company, Roswell, New Mexico. Formerly Professor 

 of Market Gardening, Massachusetts Agricultural College. vi + 

 120 pages, 5 by 7. 36 figures. Cloth, 75 cents net. 



