ELECTRIC LIGHTING. By H. H. HIGBIE, Professor of Electrical 

 Engineering, University of Michigan. (In preparation.) 



INTRODUCTION TO INDUSTRIAL ELECTRICITY. By W. H. 



TIMBIE, Head of Department of Applied Science, Wentworth 

 Institute. (In preparation.) 



HEAT AND HEAT ENGINEERING 



HEAT; A Text-book for Technical and Industrial Students. By 

 J. A. RANDALL, Instructor in Mechanics and Heat, Pratt Institute. 

 Small 8vo, xiv+331 pages, 80 figures. Cloth, $1.50 net. 



GAS POWER. By Professors C. F. HIRSHFELD and T. C. ULBRICHT, 

 Cornell University. Small 8vo, viii + 198 pages, 60 figures. 

 Cloth, $1.25 net. 



STEAM POWER. By Professors C. F. .HIRSHFELD and T. C, 

 ULBRICHT, Cornell University. (In preparation.) 



HEAT AND LIGHT IN THE HOUSEHOLD. By W. G. WHITMAN. 



State Normal School, Salem, Mass. (In preparation.) 



MECHANICS 



ELEMENTARY PRACTICAL MECHANICS. By J. M. JAMESON, 

 Pratt Institute. Small 8vo, xii+321 pages, 212 figures. Cloth, 

 $1.50 net. 



MECHANICS FOR MACHINISTS. By R. W. BURNHAM, Erasmu, 

 Hall High School, Brooklyn, Instructor in Evening Machine Works 

 Pratt Institute. (In preparation.) 



MATHEMATICS 



PRACTICAL MATHEMATICS. By C. R. DOOLEY, Westinghouse 

 Electric and Manufacturing Company, Pittsburgh. (In prepara- 

 tion.) 



A SHOP MATHEMATICS FOR MACHINISTS. By R. W. 



BURNHAM, Instructor in Machine Work, Pratt Institute Evening 

 School. (In preparation.) 



