Gilbert,William. <br/><br/>
On The Loadstone and Magnetic Bodies  
 Vol - 28. 
by William Gilbert 
 - 1st Ed.   Rep. 
 - Chicago:  Encyclopedia Britannica,Inc,  1952. 
 - 496p.:  20cm. 
<br/><br/><label>Subjects--Index Terms: </label>Encyclopedias in English 
<br/><br/><label>Dewey Class. No.: </label>032.02