PREFACE 5 



Dr. Irving Fisher of Yale University, the American School 

 of Home Economics of Chicago, and the Journal of the Ameri- 

 can Medical Association for certain food studies ; to the Mer- 

 chants' Association of New York for material concerning the 

 house fly; to Dr. W. H. Allen, Secretary of the Bureau of 

 Municipal Kesearch of New York for suggestions and certain 

 statistics concerning infant mortality; to Mr. J. J. Schoon- 

 hoven for the loan of several cuts ; and to my wife for much 

 assistance with the many details of construction. Construc- 

 tive criticisms and suggestions for improving this manual will 

 be most cordially welcomed. 



E. W. SHARPE. 

 DEWITT CLINTON HIGH SCHOOL, 

 NEW YORK. 



" The present trend of education seems to be to make these 

 three subjects the home, agriculture, and industry the 

 basis of universal, democratic education." 



