Appendix 157 



In either case, the material should be applied to all hairy 

 portions of the body, including the arm pits, chest, the pubic 

 and perineal region, and the legs, and should be thoroughly 

 rubbed in with the fingers. A single application of the 

 NBIN formula, left on for 24 hours in order to catch any 

 lice that have been hiding out in the bedding or clothing, 

 will completely eradicate the infestation. If the powder is 

 used, it should be left on for 24 hours before one takes a 

 bath, and a second application should be made in about 8 

 or 10 days. 



On Cattle 



Apply 10% DDT powder to infested cattle, either by 

 dusting or by rubbing the powder into the coat by hand. Pay 

 particular attention to the neck, ears, head, shoulders, with- 

 ers, tail base, and inner leg surfaces. An alternative method, 

 which is particularly advantageous when a large number of 

 animals are to be treated, is to dip the animals in an emul- 

 sion or dispersion of about % % DDT in water. Emulsions 

 are readily prepared from solutions of 25 or 30% DDT in 

 soluble pine oil or other solvent, and dispersions are easily 

 made by adding about 30 pounds of 50% DDT wettable 

 powder to 1,000 gallons of water. 



On Coats, Hogs, etc. 



A % % DDT dip, as described above, will satisf aaorily 

 control lice on goats, hogs, and other animals as well as on 

 cattle. 



On Poultry 



Dust either a 5 or 10% DDT powder well into the 

 feathers of the birds, getting it down to or near the skin sur- 



