Knowles, E L <br/><br/>
Mr. Knowles's Method of Preserving Leeches.  [electronic resource] 

 -  The Medical and physical journal  Apr 1810 
 - 321-322 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0267-0100