ALLEN, H.S.  <br/><br/>
A TEXT BOOK OF PRACTICAL PHYSICS 
A.S. ALLEN, AND H. MOORE,  
 - 1924 
 - pages.607 
<br/><br/> Pg mean Physics General & Mechanics Page 457-464 in A to Z Accession Register (Acc. No. Pg1-Pg228) & Page 640 (Acc. No. 224-231) 
<br/><br/><label>Dewey Class. No.: </label>Pg60