ODONTOMES ; REPORT OF THREE CASES. 
45 
right zygomatic region was distorted beyond all resemblance to 
the equine species. I expected to find abscess of the sinuses, sequel 
to “ strangles,” so trephined at about the fourth molar. The 
bone was very thin and could be cut with the knife. Quite an 
escape of amber-colored fluid followed the incision, disclosing a 
jumbled-up mass of germinal molar teeth—permanent set,—roots 
of second and third premolars and large masses of radiately, 
striate, fibrinous or gelatinous material, similar to that in Cases 
I. and II., but softer. Passing the fingers into the month, the 
second and third teeth were easily extracted, and the fourth (first 
permanent molar) followed with more difficulty. There seemed to 
be no end to diseased tissue. After cutting away the thin pellicle 
of bone until there was an opening about two or three inches in 
diameter, the fibrinous material was removed and was found to 
have pressed down upon and checked the formation of the fangs 
of the fourth and fifth molars. The superior dental branch of the 
fifth nerve was completely denuded of its bony canal and the 
mass had pressed inward, closing entirely the right nostril and 
causing absorption of the turbinated bones. The owner, a 
physician, thought the growth must be cancerous, and I agreed 
to the destruction of the colt because there was so little left of 
him. I did not retain as much of this specimen as I should like 
to have, but what I have shows the condition of the teeth that 
had just formed. 
I consider this to have been an immense follicular cyst of 
the fourth (possibly the third) molar tooth. Had it been taken 
in time, before so much pressure and atrophy had taken place, 
it could have been dissected out and the colt made a recovery 
with slight deformity. 
To Correspondents.—The Review must again beg the 
indulgence of its collaborators, as a great many very welcome 
communications are crowded out this month. Our department 
of “ Extracts from Exchanges ” is reduced to a minimum in 
order to make room for the mass of original matter. The de¬ 
layed ones will be published as rapidly as possible. 
