ALTERNATING CURRENT ELECfTRICITY AND ITS APPLI- 

 CATION TO INDUSTRY. By W. H. Timbie, Head of 

 Department of Applied Science, Wentworth Institute, and H. H. 

 HiGBiE, Professor of Electrical Engineering, University of Mich- 

 igan. First Course, x +534 pages, 5! by 8. 389 figures. Cloth, 

 $2.00 net. 



Second Course, ix+729 pages. 5j by 8. 357 figures. Cloth 

 $3.00 net. 



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

 Engineering, University of Michigan. {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. 

 xiv+331 pages, 5H by 8. 80 figures. Cloth, $1.50 net. 



GAS POWER. By C. F. Hirshfeld, Professor of Power Engineering, 

 Sibley College, Cornell University, and T. C. Ulbricht, formerly 

 Instructor, Department of Power Engineering, Cornell University. 

 viii+198pages, 5Mby 8. 60 figures. Cloth, $1.25 nef. 



STEAM POWER. By C. F. Hirshfeld, Professor of Power Engi- 

 neering, Sibley College, Cornell University, and T. C. Ulbricht, 

 formerly Instructor, Department of Power Engineering, Cornell 

 University, viii+419 pages. 534 by 8, 228 Figures. Cloth. 



HEAT AND LIGHT IN THE HOUSEHOLD. By W. G. Whitman, 

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



MECHANICS AND MATHEMATICS 



ELEMENTARY PRACTICAL MECHANICS. By J. M. Jameson, 

 Girard College, formerly of Pratt Institute, xii+321 pages, 5 by 

 7M- 212 figures. Cloth, $1.50 ncf. 



MATHEMATICS FOR MACHINISTS. By R. W. Burnham, 

 Instructor in Machine Work, Pratt Institute Evening School. 

 vii+229 pages, 5 by 7. 175 figures. Cloth, $1.25 net. 



PRACTICAL SHOP MECHANICS AND MATHEMATICS. 



By James P. Johnson, Sui)crintendcnt of the State Trade School, 

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

 $1.00 net. 



