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carbolic acid or other strong smelling antiseptic substance ; burning 

 off pastures where infected animals have grazed ; the protection of 

 animals from bites of flies by means of a suitable wash, the use of 

 which is specially recommended before crossing pastures where infected 

 animals have been. Such an insecticide may be prepared as follows : 

 Soft soap, I lb., water, | gal., kerosene, 2 gals., fish oil, | gal. ; 

 the mixture is diluted 8 times before use. In view of the fatal nature 

 of the disease, affected animals should be destroyed and the carcases 

 burned. 



Herrick (G. W.) Poultry Parasites : Some of the External Parasites 

 that infest Domestic Fowls, with Suggestions for their Control.— 



Cornell Univ. Agric. Expt. Sla., Ithaca, N.Y., Circular no. 29, 

 May 1915, 11 pp., 5 figs. 



The parasites of fowls described in this paper are placed in order of 

 importance and include Menopon pallidum, Nitzsch (common fowl) 

 louse), Menopon biseriatum, Piaget (common large louse of the fowl), 

 Dermamjssus gallinae, De Geer (poultry mite), and Ceratopkyllus 

 gallinae, Schrank (the common fowl flea). Lice, chicken mites and 

 hen fleas all respond to much the same treatment, though the lice 

 may require additional and special measures. The niost potent cause 

 of the presence and increase of these parasites is dirt, lack of light 

 being also a very important factor. The poultry house should be 

 high enough and roomy enough for a man to stand and walk about 

 in it with some degree of comfort and, if possible, all the fittings should 

 be removable. To disinfect a house, three careful applications of a 

 kerosene or crude petroleum spray are necessary with a week's interval 

 between each. An efficient emulsion may be made by shaving half a 

 pound of laundry or whale-oil soap and dissolving this in one gallon 

 of nearly boiling water; 2 gals, of kerosene oil are added and the 

 mixture is agitated until a white, creamy emulsion is formed. To make 

 a ten per cent, emulsion, 17 gals, of water is added to the 3 gals, of 

 stock mixture ; the addition of only 10^ gals, of water results in a 

 fifteen per cent, emulsion. Spraying should be followed by a dusting 

 of dry, air-slaked lime. Horses are liable to attack by the poultry 

 mite "and the poultry house should be at some distance from other 

 farm buildings, especially from horse or cow stables. Sitting hens 

 should be isolated, as mites are likely to infest them and increase 

 enormously in their nests. The provision of a dust bath in the poultry 

 house is of great benefit. Small quantities of snuff, sulphur, or dry, 

 slaked lime, or all three of these may be added to it. These measures 

 are more especially applicable to the poultry mite, although most of 

 them are of value against fowl lice also, although these are permanent 

 parasites and rarely leave their hosts. The following remedy against 

 them is eft'ective. Two and one-half pounds of plaster of Paris is 

 spread in a shallow pan or tray ; one-fourth pint of crude carbolic 

 acid is mixed with three-fourths pint of gasoline. This mixture is 

 poured over the plaster of Paris and thoroughly mixed. It is then 

 rubbed through a wire window screen on to a piece of paper and 

 allowed to stand for from 1| to 2 hours or until thoroughly dry. It 

 must not be placed near a flame or any heat. In a closed container 

 this powder will retain its strength for a long time and a small pinch 



