PREVENTION AND TREATMENT OF SCABIES. 191 



M. Sufficient for one horse. Dressing to be repeated twice 

 or thrice. 



Another creosote application consists of one part of creo- 

 sote and from 25 to 40 parts of oil, and a third is the creo- 

 sote ointment in the proportion of 1 to 20. Photogen is 

 of itself too active a preparation for use, and it requires to be 

 combined with 8 parts of oil. The remaining prescrip- 

 tions for mange in the larger quadrupeds, contain \stly, 

 Oil of turpentine and oil of hartshorn, either alone or 

 mixed with tar and petroleum; 2ndly, Tar and petroleum 

 without further addition; Srdly, 1 part of potash to 10 of 

 water added to 2 parts of tar and 2 of petroleum; ^thly, 

 Solution of caustic potash, which should be less active 

 for our domestic animals than for man, and 1 part of the 

 alkali to 25 of water is considered an active preparation ; 

 Sthly, Sulphuret of potassium in water, in the proportion of 

 1 to 5 or 10 parts; 6thly, Decoction of tobacco in the ratio of 

 1 to 20 or 25 ; this is the most easily used, and one of the 

 cheapest of the preparations ; 7thly, 1 part of sulphuric acid 

 to 24 of water is likewise to be recommended ; and, lastly, 

 Concentrated vinegar. 



Whenever scabies is treated, it is essential to purify all 

 objects with which animals can come in contact. Thus, with 

 horses, it is important to boil the clothing, and dress the 

 harness and saddles as well as washing the stable. The pre- 

 paration that I have usually employed for saddles has been a 

 solution of corrosive sublimate, in the proportion of two 

 grains to the oz. of water. 



Pastures in which scabby sheep have been should be kept 

 empty for at least two months, and all rubbing places should, 

 wherever practicable, be purified. In examining a scabby 

 flock to ascertain if it is cured, the fleece must be looked at, 

 to see if the scab is raised. A portion of wool may then be 



