Walker, James . <br/><br/>
The Theory and Use of a Physical Balance /  Textual Documents 
James Walker. 
 - 1st ed / 
 - London :  Oxford University Press ,  1887. 
 - 40p. :  ill. ;  23 cm . 
<br/><br/><label>ISBN: </label> HB 
<br/><br/><label>Subjects--Index Terms: </label>Physics T/G-Physics 
<br/><br/><label>Dewey Class. No.: </label>531.81  / W 15 T