TheRoessler&HasslaclierClieicalCo 



100 Willievm Street, New York 

 Works: Perth Amboy, N. J. 



FUMIGATING 



CYANIDE 



For generating Hydrocyanic Acid Gas. 



'^^oV^^f^'^^ 



The only positive eradicator of the San Jose Scale, 

 Red and Black Scale and other insect pests. 



INTELLIGENT 

 SPRAYING 



The Rural New-Yorker stated editorally, 

 Sept. 19th, 1908:— The Rural Grounds now 

 appear to be free from scale for the first 

 time in 12 years. ^ ^ ^ "It has been a long 

 fight, excessively discouraging until the 

 soluble oils came to the rescue three years 

 ago. The prospect brightened at the first 

 trial of these handy preparations, and re- 

 peated use seems to have resulted in vic- 

 tory." Spraying was omitted this year. 



"SCALECIDE" 



alone did more in three years than Lime- 

 Sulphur and other "dopes" did in nine. 

 Are j'ou still in the Lime-Sulphur ranks? 

 PRICES. —In barrels and half barrels, 50c. 

 per gallon ; 10 g:allon cans, $6.00 ; 5 gallon 

 cans, $3.25; 1 gallon cans, $1.00. 

 Send for Booklet, " Orchard Insurance." 

 If you want cheap oils, our "CARBO- 

 LEINE" at 30c. per gallon is the equal of 

 anything eJse. 



B. G. Pratt Co. '^rhemutf" 



50 Church St., New York City 



ENTOMOLOGICAL NEWS 



A forty-eight page illustrated 

 monthly magazine, devoted 

 to the study of Insect Life. 



It contains a resume of the 

 proceedings of a number of 

 Entomological Societies, and 

 also articles by the leading 

 Entomologists in the United 

 States and Canada. Valuable 

 information for the beginner, 

 the economic entomologist 

 and the systematist. 



T'wo Doll&rs & year in advance 

 Singie copies 25 cents 



Address 



ENTOMOLOGICAL NE\^S 



The Academy of Natural Sciences 

 1900 Race St.. PHILADELPHIA. PA. 



Please mention the Journal of Economic Entomology when writing to advertisers 



