CAMBRIDGE ENTOMOLOGICAL CLUB 
A regular meeting of the Club is held on the second Tuesday 
of each month (July, August and September excepted) at 7.30 
p.m. in Room B-455, Biological Laboratories, Divinity Ave., 
Cambridge. Entomologists visiting Boston are cordially invited 
to attend. 
81 YEARS OF SERVICE TO ENTOMOLOGY 
Three-quarters of a century devoted to the manufacture and 
design of Entomological Supplies and Equipment assures that 
your requirements can be met by Ward’s. Sterling quality, 
prompt service, and consideration of your needs are funda- 
mental with us. Purchase your requirements from America’s 
foremost Entomological supply house. 
A new catalog of Entomological Equipment is ready. Write 
for your copy . 
WARD’S NATURAL SCIENCE 
ESTABLISHMENT, INC. 
P. O. Box 24 Beechwood Station 
Rochester, New York 
