PIN-LABELS IN MULTIPLES OF 1000, ALIKE 
One Dollar Per Thousand 
Smallest Type. Pure White Ledger Paper. Not over 4 Lines nor 30 Characters 
(13 to a line) Additional Characters, 3 cents each, in total and per line, per 
1000. Trimmed so one cut makes a label. 
C. V. BLACKBURN, 7 Emerson St., STONEHAM 80, MASS. 
CAMBRIDGE ENTOMOLOGICAL CLUB 
A regular meeting of the Club is held on the second Tuesday 
of each month (July, August and September excepted) at 7.45 
p.m. in Room B-455, Biological Institute of Harvard University, 
Divinity Ave., Cambridge. Entomologists visiting Boston are 
cordially invited to attend. 
WARD’S ENTOMOLOGICAL SERVICES 
Entomological Supplies and Equipment 
Carefully designed by professional entomologists. Material of high quality at 
low prices. Send for Supply Catalog No. 348. 
Insect Preparations 
Life Histories, Type Collections, Collections of Economic Insects and Bio- 
logical Insect Collections. All specimens are accurately determined. 
Insects for the Pest Collection 
We have in stock over three hundred species of North American Insect Pests. 
Send for Price List No. 349. 
Ward’s Entomological Bulletin 
A monthly publication sent free to all entomologists requesting it. 
Information for the Beginner 
Send for “Directions for Collecting and Preserving Insects” by Dr. 
A. B. Klots. A mine of useful information. Price 15 cents. 
WARD’S NATURAL SCIENCE ESTABLISHMENT, Inc. 
P. O. Box 24, Beechwood Station 
Rochester, N. ¥., U. S. A. 
The Frank A. Ward Foundation of Natural Science of the University of Rochester 
