4 o 4 VETERINARY LECTURES 



sublimate, or sulphate of copper, have good effects, as has also a 

 mixture of spirits of tar, whale oil, and sulphur {par. 1071). 



684. Fly Maggots— the larvae of the blow-fly— the Sarcophagus 

 carnaria ; Order, Diptera. When sheep are attacked with these 

 pests they are described as being ' fly-blown ' or ' struck,' and as 

 many as 20,000 maggots may be produced viviparously by one 

 female fly on one animal. The perfect insect much resembles the 

 common ' blue-bottle,' but has a black speckled abdomen. In close, 

 muggy weather, particularly in the vicinity of plantations, sheep are 

 frequently infested by these grievously troublesome pests, which are 

 deposited in the soft, wet, dirty parts of the body, especially round 

 the base of the tail. When the animal is seen to be affected, it 

 should be got hold of at once, the wool clipped off if necessary, and 

 the parts dressed with the following mixture : Corrosive sublimate, 

 1 drachm; common salt, 4 drachms, dissolved in 1 pint of cold 

 water; or with Jeyes' fluid or Little's phenyle (1 part in 30 of 

 water). 



$85. These latter preparations answer well in many cases without 

 clipping off the wool ; whilst a bath of 1 part phenyle to 80 or 100 

 parts of soft water is a capital dressing for fleas on the dog, or 

 ticks (Plate XL., Nos, 1 and 2) on the sheep, being safe to use, and 

 also improving the hair and wool. 



686. Lice (Plate XL., Nos. 3, 4, 5, 6). — These troublesome 

 parasites are hatched from tiny eggs, and seem to be of three kinds : 

 (1) Large dark brown; (2) small red - coloured ; and (3) yellow. 

 They attack the cow more frequently than the horse, and are chiefly 

 seen during the winter months irifesting the stall-fed animal, par- 

 ticularly if in a poor condition — in fact, they seem to be the great 

 friends of poverty. The parts they most frequent are the head, 

 neck, brisket, along the spine, and the root of the tail. The best 

 dressing I have found is J to 1 ounce powdered stavesacre put into a 

 quart of boiling water and left to stand for twelve hours. This, 



