5 U *> i X 
FOURTH SERIES, VOL. III., Part II. (Nov., 1912, issued for 1911). 
Price 1/6. 
PROCEEDINGS^ 18 "' 
I* Nl 
BRISTOL \^ /( 
NATURALISTS' SOCIETY. 
N0V21 jc 
" Rerum cognoscere causas."— Virgil. 
BRISTOL : 
PRINTED FOR THE SOCIETY. 
MCMXII. 
