DIARRHCEAS OR “ SCOURS ” OF NURSLINGS. 323 
and fatty acids. This is the chylous diarrhoea of some authors, 
the sequel of gastric and duodenal disturbance and non-assim¬ 
ilation. Improperly cared for, especially in unhygienic sur¬ 
roundings, it is apt to progress into a dysenteric form, especi¬ 
ally in young ovines, and also become infectious and perhaps 
epidemic. In the primary infectious form, the passages are 
of lighter yellow, even approaching a lemon or whitish hue, 
more numerous, are either acid or neutral in reaction, often 
foetid, and contain large numbers of microbes, which may 
play an important part in the pathogeny of the trouble. Such 
scours readily assert themselves during weaning, or in crea¬ 
tures that are improperly and continuously hand-fed. 
Another form is the diarrhoea lienteria, which may be— 
and often is—indicative of organic disease, probably adynamic 
or hereditary in origin; it is one of the characteristics of mes¬ 
enteric tuberculosis, purpura, aphthae neonatorum, etc., and 
is common among the offspring of creatures that are too closely 
inbred—an act calculated to perpetuate and intensify race 
weaknesses. The passages are white at first, and of some 
consistence, but later occasionally and temporarily stained 
with bile, and extremely liquid. When not due to organic 
causes, the trouble lies in an alteration of the secretion of the 
pancreas, and perhaps that of the liver as well: the food coag¬ 
ulated in the stomach is not transformed into peptones by 
the pancreas, and passes in an undigested state. 
Green and bilious diarrhoeas should be classed among ali¬ 
mentary, and are of more frequent appearance in colts than 
in either calves or lambs : they are attended with increased 
biliary secretion, and loose copious stools of bright yellow, or 
yellow-green, of decided acid reaction. Commonly arising 
from high temperature of surroundings and impure atmosphere, 
they usually appear during the first month succeeding birth, 
are not characterized by serous digestive derangement, and 
are especially prone to be self-limited, and consequently harm¬ 
less. 
Reflex diarrhoeas also are observable, dependent upon 
taking cold, dentition, etc., in which the passages may be 
simply mucous, but sometimes assume a serous nature ; are 
