DISEASES AND PREDATORY ANIMALS 



It can, however, be obtained from wholesale druggists in 

 the larger cities and other druggists can secure it on de- 

 mand. It comes in two forms known as the commercial 

 sodium fluoride and as the chemically pure sodium fluor- 

 ide. The commercial is recommended for use inasmuch 

 as it is in a more finely powdered form, is cheaper in price 

 and will do the work very well. Commercial sodium 

 fluoride should be procurable from druggists at a retail 

 price between 30 and 60 cents a pound. This material 

 keeps very well if placed in stoppered bottles or in closely 

 covered cans. 



Where the turkeys are to be dusted small amounts of 

 the sodium fluoride should be placed around on different 

 parts of the fowls to be treated. In treating the adult 

 turkeys one should have an assistant to hold the bird 

 while the sodium fluoride is applied. It is well to place 

 the bird on a table where the assistant can hold it by the 

 legs and wings. Place a small pinch of the sodium fluor- 

 ide among the feathers next to the skin in the following 

 sections : one pinch on the head, one on the neck, two on 

 the back, one on the breast, one below the vent, one on the 

 tail, one on either thigh and one scattered on the upper 

 side of each wing when spread and one scattered on the 

 under side. The action of the chemical is comparatively 

 slow. If the turkeys are examined two or three days 

 after they have been treated it is possible that some lice 

 will still be found but in a few days more all of them 

 should have disappeared. In using the material no fear 

 need be felt that it will produce any bad effects on the 



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