IV 
ORCHARD BRAND SPRAY MATERIALS 
Standard of Quality—Maximum of Efficiency 
BTS 
A dry material for dormant and growing period 
spraying of fruit trees 
Atomic Sulphur, Paste 
Arsenate Lead 
Arsenite of Zinc 
Calcium Arsenate 
Lime Sulphur Solution 
Bordeaux Mixture Powder 
Bordeaux Lead Powder 
Zinc Bordeaux Powder 
ACE-HY 
For control of Aphids and Pear Psylla 
MANUFACTURED BY 
GENERAL CHEMICAL COMPANY 
40 Rector Street, New York 
WARD’S NATURAL SCIENCE ESTABLISHMENT 
84-102 College Avenue, Rochester, N. Y. 
Entomological Supplies of all kinds, including 
the only genuine hand-made Schmitt Insect 
Boxes and the well known American Ento¬ 
mological Co.’s Insect Pins. 
Write for E-30, free catalogue of Entomological Supplies; E-125, Life 
Histories of Insects of Economic Importance; also special 
lists of Lepidoptera, Coleoptera, etc. 
Please mention the Journal oj Economic Entomology when writing to advertisers 
