Howarth,O.J.R. <br/><br/>
The British association for the advancement of science:  A retrospect 1831-1931/ 
O.J.R. Howarth. 
 - London:  1931. 
 - 330 p. ;  19 cm. 
<br/><br/><label>LC Class. No.: </label>SPE-A 0246