Ill 
Entomological 
Supplies and 
Specimens 
Write for illustrated price 
lists and information to 
THE KNY-SCHEERER CORPORATION 
Department of Natural~Science, 
404-410 W. 27th St., New York N. Y. 
Save Y our T rees 
It takes a lifetime to grow a fine shade 
tree. A colony of leaf-eating insects can 
destroy it in one season. 
Tree Tanglefoot will effectually protect 
shade and fruit trees from most of our des¬ 
tructive insect pests, i. e.: 
Canker worms, Tussock moths, Climbing 
cut worms. Brown-tail moths, Woolly aphis, 
Gypsy moths, Ants. 
One application stays sticky three months 
and longer, outlasting ten to twenty times 
any other substance. Easily applied with 
a wooden paddle. One pound makes about 
ten lineal feet of band. It will not soften, 
run or melt, yet it is always elastic, ex¬ 
panding with growth of tree. Effective 
rain or shine. Needs no mixing.used exactly 
as bought. 
Endorsed bv prominent Park and Ceme¬ 
tery Superintendents. 
FOR TREE SURGERY 
Superior to anything on the market. It 
is the best application after pruning or trim¬ 
ming. It will water-proof crotch, cavity or 
wound when nothing else will. 
Trees on left were saved by Tree Tanglefoot 
Sold generally by Seedsmen. 
Price: 1 lb. cans, 50c; 3 lb. cans, $1.45; 10 
lb. cans, $4.50; 20 lb. cans, $8.75; 25 lb. 
wooden pails, $10.50. 
Write for free illustrated booklet on leaf-eating insects 
THE O. & W. THUM COMPANY, 163 Straight Avenue, Grand Rapids, Mich. 
Manufacturers of Tanglefoot Fly Paper and Tree Tanglefoot (122) 
SCARAB COMPANY 
603 W. Michigan Ave. Urbana, Illinois 
Books by Alex. D. MacGillivray, Ph.D. 
Professor of Systematic Entomology in the University of Illinois 
THE COCCIDAE 
Tables for the Identification of the 
Subfamilies and some of the more 
Important Genera and Species. 
8mo., cloth, 6x9 inches, VI-502, 
$6.00, net, postpaid. 
EXTERNAL INSECT ANATOMY 
A Guide to the Study of Insect 
Anatomy and an Introduction 
to Systematic Entomology 
8mo, cloth, 6x9 inches. 350 pages. 
Ready in September 
Please mention the Journal of Economic Entomology when writing to advertisers 
