FOURTH* SERIES, VOL. L, Part III. (issued for 1906). Price 2s. 
PROCEEDINGS 
OF THE 
BRISTOL 
NATURALISTS’ SOCIETY. 
EDITED BY THE HONORARY SECRETARY. 
Rerum cognoscere causas.^^ — ViRGiL. 
BRISTOL : 
PRINTED FOR THE SOCIETY. 
MCMVIL 
