CHEMISTRY TRIUMPHANT (Industrial Chemistry) 



WILLIAM J. HALE, Dow Chemical Company, Midland, Michigan 



THE QUEEN OF THE SCIENCES (Mathematics') 



E. T. BELL, Department of Mathematics, California Institute 



of Technology, Pasadena 



FRONTIERS OF MEDICINE (Medicine) 



MORRIS FISHBEIN, Editor of Journal of American Medical 



Association 



THE AMERICAN SECRET (Mining and Metallurgical 



Engineering) 

 THOMAS T. READ, School of Mines, Columbia University, New 



York City 



ADJUSTMENT AND MASTERY (Psychology) 



ROBERT S. WOOD WORTH, Department of Psychology, Columbia 



University, New York City 



THE TREATMENT OF STEEL AND PEOPLE (Steel 



Treating) 



G. M. EATON, Director of Research, Spang, Chalfant & Company, 

 Inc., Ambridge, Pennsylvania 



LIST PRICE $1.00 PER VOLUME 



