NEW SEEIES, Vol. VI. (1888 91). 



PROCEEDINGS 



OF THE 



BRISTOL 



NATURALISTS' SOCIETY. 



EDITED BY THE HON OEAEY' SECRETARY. 



Reruvi cannoHcere causas.'' — Viegil. 



BRISTOL : JAMES FAWN & SON. 



Printed for the Society. 



MDCCCXCI. 



