SEROUS ABSCESS. 195 



after extra feed is allowed, and a few iron powders are 

 given, the scrotum will have to be opened a little on both 

 sides to allow the fluid to flow out. Do not mistake the 

 sweUing for scrotal rupture. (See Euptures.) 



Scurf. — A scaly eruption on the skin of badly-groomed 

 and cared for horses. It is cured by good grooming, good 

 feeding, and, in some cases, a change in stabling. 



Secretion. — The product secreted or separated from 

 the blood. Secreted products are of two kinds : 



(1.) Excretion, or matter separated by animal bodies, 

 and thrown off on account of their noxious or effete 

 qualities. Examples — the urine, the dung, sweat, and 

 carbonic acid gas from the lungs. 



(2.) Secretion is matter separated from the blood for 

 further use, and for the performance of various actions in 

 the living system. Examples — bile, saliva, etc. 



Sedatives.— Medicines which lessen pain, and should, 

 therefore, be called calmatives. Aconite is the most certain 

 and successful sedative and calmative we have to offer, and 

 will seldom disappoint the highest expectations, if used 

 properly, and in good time. 



Serum. — The thin, colorless fluidj wliich separates from 

 the blood. 



Serous Abscess. — A variety of abscess seen usually 

 about the breasts of horses. It arises from injury followed 

 by the pouring of a serum from the blood into the injured 

 part, which, not being absorbed readily, remains there in 

 the form of a large ovoid flattened bag. A blind man, 

 who never saw a tumor, could tell that it contained fluid. 

 Indeed, wherever dropsical swellings are not absorbed, a 

 serous abscess will be formed. 



