kG 
Circular 23 - Reference Index 
Precautions (Con1 
preparation of 
Formula 62 smear 
storage 
diphenylamine 
21-27. 
formalin. . . .21-34. 
fumigants. . . .22-3. 
hydrogen oeroxide 
21-40. 
insecticides 
11-3; 20-3. 
iodine 21-41. 
paradichloroben- 
zene 21-58. 
silver nitrate 
21-68. 
sodium fluoride 
11-8; 21-72. 
use 
derris ointment 
near eyes. . .9-16. 
mercurial ointment 
9-16. 
Paris green.. 7-20. 
pyre thrum on live- 
stock 21-66. 
soil poisons 2-35. 
ventilating fumigated 
buildings 22-36,38. 
Preservatives 
ethyl alcohol.. 21-7. 
Pressure guage 
power sprayer 20-32. 
Pressure-treated wood 
length of service 
2-22. 
manufacturers and 
distributors. .2-40. 
pr iservatives. .2-23. 
u* • 2-13,21,22. 
Procurement 
insecticides and sub- 
sidiary materials 
21-82. 
Pseudolynchia canaden - 
sis MacqT {"see Pigeon 
7Ty) 
Ps^rophora (mosquitoes) 
habits. 7-9. 
"pest mosquitoes" 
....7-9. 
Psoroptes communis equi 
(Oerlach ) (Psoroptic 
mites) 
cause of psoroptic mange 
on horses 19-7. 
control of mange 
caused by 19-8. 
description; habits 
19-7. 
Psoroptic mites (see 
Psoroptes communis equi 
(Gerlach) ) 
Pubic louse ( Phthirus 
pubis (L. ) ) 
biology 9-7. 
control 
body; clothing 
9-16. 
quarter^ 9-17. 
mercuric chloride 
ointment 
9-16; 21-49. 
"crab louse" 9-2. 
dissemination. . . .9-7. 
egg and male 
(illus.) 9-4. 
Pulex irritans (L.)(see 
Human flea) 
