AN 



ELEMENTARY TREATISE 



ON 



THEORETICAL MECHANICS' 



BY 



ALEXANDER ZIWET 



ASSISTANT PROFESSOR OF MATHEMATICS IN THE 

 UNIVERSITY OF MICHIGAN 



IN THREE PARTS 



Nefo gorfc 

 THE MACMILLAN COMPANY 



LONDON: MACMILLAN & CO., LTD. 

 IQOI 



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