150 POULTRY FOR PROFIT 



poison. As used at Petaluma the blue ointment, 

 which may be purchased at almost any drug store, is 

 diluted with lard, a pound of the ointment being 

 mixed with a gallon of lard. This is rubbed about 

 the vent and under the wings, and is not dangerous, 

 nor is it as effective as the blue ointment mixed with 

 an equal quantity of vaseline. When the stronger 

 preparation is used a very small quantity should be 

 taken on the finger and carefully rubbed about the 

 vent. 



Lowry Powder. — The Maine Station recommends 

 this lice powder as the cheapest and most effective 

 treatment: 3 parts gasoline, 1 part crude carbolic 

 acid, 90-95 per cent strength. If this strength of the 

 acid cannot be obtained, use 3 parts gasoline, 1 part 

 cresol. Mix these together and add gradually while 

 stirring enough plaster of paris to take up all the 

 moisture. As a general rule it will take about four 

 quarts of plaster of paris to one quart of the liquid. 

 The liquid and dry plaster should be thoroughly 

 mixed, and the resulting mixture will be a pinkish- 

 brown powder, which is to be worked into the feath- 

 ers and fluff like any other powder. This is called the 

 Lowry powder, after its inventor, Mr. R. C. Lowry of 

 Cornell University. 



Sitting hens should be well dusted before the eggs 

 are given them and two or three times during incu- 

 bation, so the young chicks may be free from lice, 

 which are fatal to them. It is safest, also, to grease 

 the heads and throats of hen-hatched chicks with 

 lard, for it is hard to be sure that the hen is perfectly 

 clean. Hen and chicks should be dusted every week 

 or two or the lice will find them. 



Lice powder or tobacco powder or tobacco stems 

 in the sitting hen's nest will go far to keep her free 

 from lice, and it is said that kerosene sprayed with 



