230 
PROF. WALLEY. 
The modus operandi of the treatment by means of which the 
disease is arrested is, I think, simple; both iodine and phenol are 
powerful fungicides and active irritants—as the former, the} 
destroy the fungus to which the disease owes its origin ; as the 
latter, they induce a plastic and consequently a localizing 01 
circumscribing inflammation, which has the effect of arresting the 
extension of the fungus and the lesions to which it gives rise 
The surgical operations recommended merely facilitate the appli 
cation of the potential agents to which 1 have alluded. 
In order to ensure the proper application of remedies, I hav< 
had made, by Messrs. Krohne and Sesemann, the following instru 
ments : 
(1) A tongue scraper , with which is combined (2) a scarifier— 
regulated as to depth by movable screws; (3) an irrigator , in tin 
form of a pipette; and (4) a pair of tongue forceps , by the aid o 
which the tongue can be effectually secured (a difticult matter ii 
cattle) and its further manipulation rendered easy. The scarifies 
I may observe, can be utilized for other purposes than the one fo 
which it was designed, e.g ., for scarifying any oedematous swel 
ings on the gums in lampas; while the irrigator may be used fo 
similar purposes in the treatment of tumors or for explorator 
aspiration^. 
Intestinal Parasite of Swan. 
During the summer I was asked to make a post-mortem e? 
animation of the body of a swan with the object of discoverin 
the cause of its death, which had been sudden. 
On laying open the small intestines I observed a number» 
yellowish-colored bodies intimately attached to the mueuos men 
brane and having the appearance of little masses of yellow pain 
but on the application of force I discovered that they were of a 
organic nature and attached by a pedicle to the membrane. On 
of my pupils, Mr. N. J. Doyle, who was standing near, suggest! 
that they were parasites, and on removal from the intestine the 
true nature was readily discovered, and it was further confirm! 
on microscopical examination by Mr. Gray. From the characte 
presented I came to the conclusion that the entozoon was a di 
tome, but through the kindness of Dr. Aitken, I was enabled 
