ACKNOWLEDGMENTS 



THE author wishes to express his gratitude and appreciation for 

 the valuable assistance given by Miss Mae Berman, whose careful and 

 painstaking work has been exceedingly helpful. He also wishes 

 to express his thanks to Mr. A. J. Van Brunt, Director of Safety 

 Education, Public Service Corporation of New Jersey, who has 

 rendered valuable assistance in furnishing material and illustra- 

 tions for Chapter XV, " -Safety First"; to Mr. Frank Morton of 

 The American Steel and Wire Company, who has furnished the 

 plates for the American Equal Tension Scale, the strung-back of 

 the Steinway piano and the Pipe-organ in the church at Salt Lake 

 City; to Dr. Arthur J. Cramp of the Journal of the American Medical 

 Association, for his helpful suggestions, and his interest in reading 

 proofs and furnishing material for the section on Nostrums (pages 

 245 to 256) ; to Dr. F. E. Stewart of the H. K. Mulford Company, 

 who has evinced great interest in the book and has loaned to the 

 author the valuable cuts for the chapter on Germs and Disease; 

 to Messrs. James P. Hanlon and F. D. Pendleton of the Public 

 Service Corporation of New Jersey, who have greatly assisted the 

 author in obtaining the cuts and data found in the chapters on Gas 

 and Electricity; to Mr. P. R. Jameson, F. R. Met. Soc. of the 

 Taylor Instrument Company, who has given the author many 

 helpful suggestions and has furnished through his interesting bro- 

 chures many things for Chapters One and Two. 



The author wishes to give recognition to the following members 

 of the faculty and student body of the State Normal School, Newark, 

 N. J.' to Miss Grace Engels, teacher, who drew Figure 49A; to 

 Miss F. M. Egnor who drew Figure 142; to Miss Anna Balling, who 

 has often given the author much valuable assistance; to Miss Sophie 



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