180 SHEEP DISEASES. 



lead mines or smelters may give one a clue as to 

 the cause of the trouble. 



Treatment: One-half dram doses of potassium 

 iodid dissolved in a pint of water will hasten the 

 removal of the poison by transforming the lead 

 into lead iodid. Gum acacia in water or raw eggs 

 help to protect the mucous membranes. 



Postmortem appearances: Paleness of the in- 

 testinal mucosa; ulcers and lead-gray discolora- 

 tions throughout the alimentary canal. 



In a large band of sheep the only practical pro- 

 cedure is a complete change of food and water. 



3. Acute Arsenical Poisoning. 



Acute arsenical poisoning is very rare in sheep. 



Symptoms: Great salivation, eroded tongue, 

 paralysis, stupor, and death in a few hours. 



Treatment: Do not give oil. Hydrated iron or 

 even the common iron sulphate in large doses, one- 

 half ounce to a pint of water, may be given. Eaw 

 eggs, lime water, sweetened water, sulphur and 

 potassium sulphate are also used. Treatment of 

 acute arsenical poisoning is seldom successful. 



Postmortem appearances: Great redness and 

 swelling of the mucous membranes of the alimen- 

 tary canal. 



4. Chronic Arsenical Poisoning. 



Chronic arsenical poisoning is sometimes seen 

 after using dips containing arsenic. 



