THE 
ESSEX NATURALIST: 
BEING THE 
3ournal of tbe BSsscy Jfielb Club 
EDITED BY 
WILLIAM COLE, ASSOC.L.S., 
Honorary Secretary. 
VOLUME XVII. 
JANUARY , 1912 — DECEMBER, 1913. 
“ Men that undertake only one district are much more likely to advance 
Natural Knowledge than those that grasp at more than they can possibly be 
acquainted with. Every kingdom , every provide, should have its own 
Monographer.'' —Gilbert White, of Selborne. 
Things seen are mightier than things heard." — Tennyson. 
[The authors alone are responsible for the statements and opinions contained in their 
respective papers ] 
PUBLISHED BY THE CLUB, AT THE ESSEX MUSEUM 
OF NATURAL HISTORY, STRATFORD, ESSEX. 
I 9 I 4- 
