MODERN SHEEP: BREEDS AND MANAGEMENT. 



271 



entirely. They foam at the mouth and usually a deposit of alkali 

 is noticed adhering to their nostrils. The period between the eat- 

 ing of the alkali and the death of the victim varies considerably. 

 Sometimes it dies within an hour; in other instances it lingers for 

 two or three days or even longer. Alkali districts should be 

 avoided as much as possible. Especially is this true where the 

 waters are known to contain the alkaline salt to excess. 



Head of "Pig-Mouthed" Sheep. 



