Knowles, Francis G. W.  1915-1974 <br/><br/>
Biology and man / 
by Francis G. W. Knowles 
 - London :  George G. Harrap,  1950 
 - 304 p. :  ill. ;  19 cm. 
 - Harrap's torch books .
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology