252 DADD’S VETERINARY MEDICINE AND SURGERY 
performed, it is said, with success, on many animals, and is pro 
posed as a safe and less painful process than the emasculation of 
the horse. It consists in a longitudinal] section through the scro- 
tum, dartos, and vaginal sheath, so as to expose the cord, from 
which the vas deferens is to be separated and severed from the 
artery and vein. There is a. certain consent of parts, by which 
the sympathy of an organ remains after its functional offices are 
apparently destroyed. There can be little doubt but the nervous 
excitement would continue, the vein and artery remaining entire, 
There are certain nice conditions of the organ necessary for prop- 
agation. Thus, the horse who retains his testicles within his abdo- 
men, possesses all the roguish qualities of him with one perfectly 
evolved; he is lustful, and can cover, but is seldom fruitful. 
Of the morbid consequences of castration we have little to say. 
By early evacuations, green food, a loose box, a cool air, moderate 
clothing, but, particularly, by walking exercise, swellings of the 
parts may be prevented; if not, bleed and foment. Should sup- 
puration follow, and sinuses form, treat as directed under those 
heads; and if tetanic symptoms start up, refer to that article. 
There has been lately practiced in India a novel mode of castra- 
tion, which is said to be the invention of a Boer, settled at the 
Cape of Good Hope. The cord is expose:! in the usual manner, 
From the cord the artery is singled out. This vessel is scraped 
through with a coarse-edged, blunt knife, when the other constitu- 
tents of the cord are cut away, and the operation is finished. This 
method is much praised by those who have adopted it, and is said 
to be always attended with success. 
LrrHotTomy. 
Hurtrel d’Arboval’s account of the progress of lithotomy in vet- 
erinary practice commences in 1774; the second case was suocess- 
fully operated on in 1794; and at later periods other veterinary 
surgeons have also performed it. In monodactyles there are two 
methods of operating for the stone—one through the rectum, the 
other through the bladder. The first, which consists in laying 
open the bladder by a longitudinal incision made through the 
parietes of the part of the rectum adherent to it, by means of a 
straight bistoury, is easily practiced, but in its consequences is 
dangerous in the extreme; in fact, it is an operation never to be 
