460 
WILSON HUFF. 
the digestive organs of the horse receiving a large quantity of 
lime in its water. Hard water undoubtedly produces a derange¬ 
ment of the intestinal canal, and sympathetically of the skin. 
The harsh, staring coat of horses receiving hard water rapidly 
disappears when a softer water is supplied. The amount of 
hardness in water which will produce this derangement of 
the intestinal canal has not been accurately determined : but 
from 8 to lo grains of lime per gallon has in many cases been 
found injurious. 
Water impregnated with sulphurous acid gives rise in cattle 
to a number of serious symptoms and to diseases of the bones. 
Rossignol states that water highly charged with calcium car¬ 
bonate and sulphate was found to give rise to exostoses in 
horses, and that pure water being given the disease ceased. In 
The Veterinarian Dudfield states that young horses have been 
attacked by bony tumors on their limbs, the result of using 
water charged with calcareous salts. An excess of sulphate of 
lime in some well-water is supposed to have caused an epizootic 
among the horses of a French regiment of cavalry ; on chang¬ 
ing the water-supply the disease ceased. Butyric acid, one of 
the results of the decomposition of organic substances, has been ' 
known in combination with lime to produce diarrhoea in man 
and animals. During the cattle plague in Dresden, some ani¬ 
mals were buried from lo to 12 feet. During the next year 
water from a well 100 yards away had a putrid odor, and con¬ 
tained butyrate of lime. Cystic calculi among animals, par¬ 
ticularly sheep, have been attributed to the excessive hardness 
of the water. Calculous diseases are more common in the 
limestone districts than in any other. Ulcers of the skin in 
man, particularly that known as Delhi boil, have been supposed 
to be produced by the drinking water. We may have reason 
to believe that bursatee, the analogy of Delhi sore in man, has 
been produced by the agency of water, though in what way this 
acts I am not prepared to explain. Goitre has been observed 
among horses and mules from drinking water well known to 
produce goitre in man. The impregnation of water by sewage 
