18 
Circular 23 - Reference Index 
Dermestes vulpinus 
Fabr. ["see Hide 
beetle) 
Derris 
dip 
ticks on dogs 
12-18,20. 
ticks on horses 
and cattle 12-22. 
ointment 
sarcoptic mange on 
dogs 19-17. 
powder 
characteristics 
21-26. 
manufacturers and 
distributors 
21-26. 
precautions 21-26. 
prevent tick bites 
12-12. 
price; source 
21-26. 
use to control 
ants 
15-7; 21-25. 
fleas 
13-7; 21-25. 
lice 
9-8,9,10,11,16; 
19-5,22; 21-25. 
pigeon flies 
19-24. 
ticks 
...12-18; 21-25. 
wash 
demodectic mange 
of dogs 19-20. 
sarcoptic mange 
of dogs 19-17. 
Devices for insect 
control 20-1 . 
atomizers 20-6. 
airplane spraying 
and dusting. . .20-40, 
barrel pumps . . . 20-16 , 
bellows or knapsack 
dusters , J 0-35 
bucket pumps. . 20-14, 
care of 20-4< 
compressed air 
sprayers 20-1 1 , 
conical fly traps 
20-43 
dust goggles. . .20-48, 
dust mixers .... 20-38 
dusting equipment 
electrocutors, .20-47 
fan or blower duster 
20-36 
fly traps. . . * . . 20-43 
f umigat ion eau i oment 
20-42 
gloves and aprons 
[ protective. :-50, 
hose couplings md 
clamps :0-32, 
knapsack sprayers 
.20-13. 
manufacturers and 
distributors. . ^0-51, 
miscellaneous. . 20-50, 
mosquito collecting 
dropper 
7-5,(illus. )4, 
killing tube. . 7-4- 
motorcycle spraying 
equipment 20-23. 
nozzle Y 20-31 
plunger type dv ter 
0-34, 
power dusters , . 0-38, 
power sprayers 20-18, 
pressure gauge 20-32, 
procurement o: -51, 
protective (ag^;ast 
horse bots) . . . . 16-9, 
