APPLIED SCIENCE 



FOR 



METAL-WORKERS 



By 



WILLIAM H. DOOLEY, B.S., A.M. 



Principal of New York Textile School; Principal Navy Yard Appren- 

 tice School under the New York City Board of Education; Formerly 

 Principal of the Technical High School, Fall River, Mass.; Author of 

 "Textiles," "Boot and Shoe Manufacturing," "Vocational Math- 

 ematics for Boys," ".Vocational Mathematics for Girls," "Principles 

 and Methods of Industrial Education." 



NEW YORK 



THE RONALD PRESS COMPANY 

 1919 



