584 MANUAL OF MODERN FARRIERY. 



ing of cerate may be applied, after whicli it will soon heal, 

 in most instances. Sometimes, however, the flesh grows 

 too rapidly and in too great a quantity ; which must be 

 checked by a mixture of red precipitate and burnt alum 

 dusted upon it. When the discharge has changed from a 

 green hue to a yellowish-white, it may then be assumed 

 that the parts are healing ; and they should be brought 

 together at the edges by gentle pressure, and kept so by 

 adhesive-plaster ; but care should be taken to leave free 

 egress for the matter if it still continues to flow. To keep 

 down the swelling the lower portion of the limbs may be 

 washed with vinegar. 



YER}>[IN. 



Sheep are liable to be infested with various kinds of 

 vermin, especially those that are lean and out of condition, 

 as well as the young animals. Various kinds of insects 

 deposit their eggs in the skin of sheep, which produce little 

 tumours. These are the receptacles of the grub or maggot, 

 after the eggs are hatched. The insects whicli lay their 

 eggs in the skin of animals are provided with an instrument 

 called an ovipositor, with which they penetrate the skin, and 

 at the same instant they deposit their eggs. The tumours 

 produced by the grub after it is hatched create considerable 

 uneasiness to the sheep ; and when a single sheep has several 

 of these in his hide, he will seldom feed well, from the 

 constant irritation produced by the motion of the grub. 

 The shepherd, when he sees this uneasiness manifested, 

 should search for the tumours, and pick out the grubs with 

 a pin, or squeeze them out with his thumb-nails, as there is 

 always a small aperture on the surface of the tumour 

 through which the grub escapes in due season. 



The sheep-tick, called hippohosca ovina, is also very 



