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REVIEW — ESSAY ON 
MR. HENDERSON'S LETTERS. • 
In reference to the letters of Mr. Henderson on “ Defective 
Veterinary Education/’ one of which is contained in our impression 
for last month, the second appearing in our present No., and which 
have likewise been published in the Mark-lane Express, the Edi- 
tor of that journal writes — “ That the importance of veterinary 
science to the owners of cattle and horses in this kingdom is so 
great, that, if the statements made by Mr. Henderson are correct, 
means must be taken to remedy the evil. The establishment of a 
second school or college would , in all probability , have the desired 
effect .” 
REVIEW. 
Quid sit pulchrum, quid turpe, quid utile, quid non. — Hon. 
An Essay on the Diseases of the Jaws, and their Treat- 
ment. By LEONARD KOECKER, Surgeon-Dentist, &c., New 
Edit. With copious Notes and Appendix. By T. B. MITCHELL, 
M.D., Surgeon-Dentist. Churchill, London. 8vo. pp. 94. 
The maladies of the jaws — though there are times when, in 
animals more than in human beings, they may be regarded as 
independent of the teeth — for the most part belong, in their early 
forms in particular, to the province of dentistry ; and therefore it 
is that “ the dental surgeon has the best and most extensive 
practical opportunities of observing and watching these maladies 
through their different stages.” Diseases of the teeth, in horses, 
dogs, and cattle, as compared with the catalogue human medicine 
exhibits, are few, uncomplicated, and readily remediable. Leav- 
ing out of mention such evils as, now and then, not often, arise 
from dentition, horses’ dental disorders may be comprised under 
the headings — inapposition, fracture , supplemental or wolves' 
teeth, caries . 
At the middle and advanced periods of life horses are very apt, 
from irregular and sidelong motions of the jaws during the act of 
manducation, to wear the surfaces of their molar teeth slantingly, 
and so much so as in the course of time to give rise to declivities 
in the crowns of those teeth, unfitting them for the purpose of 
grinding the food, the consequence of which is, that the aliment 
either passes into the stomach imperfectly masticated, or else 
collects together into a sort of pellet — cud, as it is called — and 
becomes lodged in a pouch formed within the cheek, outside the 
