DISEASES OF THE DOMESTIC ANIMALS 817 



the crack by either removing a V-shaped piece of horn; by paring 

 away the upper portion of crack to sensitive laminae and coronary 

 band above, and clamping the crack below; or by grooving the wall 

 above at right angles with the crack. All these measures tend to 

 immobilize the edges of the crack and allow of formation of new 

 horn. To stimulate growth of horn, also blister the coronet. Apply 

 bar shoe, with thin heels and side clasps in fissure of toe; a three- 

 quartered bar shoe in quarter-crack. Employ covering of wood 

 tar on hoof continuously. 



Sarcoma. 



Use knife freely and try Coley's mixture of toxins of erysipelas 

 and B. prodigiosus. At times very successful in human practice. 

 Satyeiasis. See Sexual Excitement. 



Scab in Sheep. 



Due to Dermodectes communis, var. ovis. Lambs and yearlings 

 most susceptible. 



Segregate and dip newly-bought sheep. Isolate sick and disinfect 

 premises and contaminated objects. Shear sick and remove crusts 

 with soft soap solution (1-SO), aided by brush. Treatment is done 

 with baths or dips. They are given only four hours after feeding 

 and g,t body heat. Repeat dip in ten days and keep animal in bath 

 two minutes. Dip head under once, in sulphur dip; keep mouth, 

 nose and eyes out in poisonous (tobacco, arsenical) dips. For 

 shorn sheep, use U. S. Bureau of Animal Industry Dip, which is 

 cheap, safe and efficient. Flowers of sulphur, 24 lbs.; unslaked 

 lime, 8 lbs.; water, 100 galls. Mix lime in box with water to make 

 paste; sift on sulphur; stir all well together. Boil with 25 galls, of 

 water for two hours or longer, till solution of chocolate-liver color 

 and sulphur mostly disappears from surface. Settle mixture in a 

 barrel with bunghole four inches from bottom; allow four hours for 

 settling. Draw off only clear liquid into dipping vat and add water 

 to make 100 galls. For animals in full fleece, use manufactured 

 tobacco, 1 lb.; flowers of sulphur, I lb.; water, 5 galls. Soak to- 

 bacco 94 hours or more, on night before dipping, boil tobacco solu- 

 tion for a minute and allow tobacco to remain in it over night. Mix 

 sulphur to paste with water in a pail. Strain liquid from tobacco 

 by pressure, and add liquid to sulphur paste and enough water 

 to make S gallons. After dipping, turn sheep into clean yard. 

 Dip healthy sheep first; then scabby ones, when a flock is attacked. 

 There are many excellent commercial dips on the market; follow 

 specific directions with each. Other agents include: creolin, 2 gal- 

 lons; arsenic, 1..5 lbs.; iron sulphate, 10 lbs.; water, 100 gallons, etc. 

 Good pasturing and generous feeding aid resistance against scab. 



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