742 
TIME OF ATTENDANCE 
cartilages, and preserve the foot.” So that the gentle and neces- 
sary expansion of the horny wall itself, caused by pressure from 
above in action, he has always refused to see or to recognize, but 
insisted on pressure from beneath as the primary object in shoeing. 
I spoke of fallacies, and inversions of the truth. Here is a case 
in which he has actually turned the physiology of a most im- 
portant organ, as it were, upside down. The direct converse of 
his doctrine is correct. 
Respecting the all-important principle alluded to, which he so 
long neglected and withstood, it is now admitted among the intel- 
ligent in our profession at home and abroad, and is leading to a 
time when 'primary frog pressure will be laughed at or forgotten. 
In physiological inductions every one is liable to err ; but is it not 
culpable for a public teacher to persevere during half a century 
in a theory which is every way proved to be erroneous] It is a 
most serious consideration, that every ardent aspirant in veterinary 
study in that period has been subjected to false impressions which 
have, more or less, retarded his success, and depreciated the pro- 
fession; since, after all they have heard about frog-squeezing at 
school, it is found untenable in practice, and committed, with the 
patent shoes, to oblivion. 
ON THE TIME OF ATTENDANCE AT THE VETERI- 
NARY COLLEGE REQUIRED FROM THE MEDICAL 
STUDENT. 
By Mr. John Jackson. 
I AM happy to see, from your last Journal, that there are some 
of the profession who feel anxious for the advancement of the re- 
spectability and the extension of the education of the veterinary 
pupil. 
I think it is a praiseworthy undertaking of the gentlemen whose 
letters appeared in the last VETERINARIAN; but, perhaps, Mr. 
Mayer, after saying that “ indentures from every student of his 
having spent three years in the pursuit of veterinary knowledge 
be required at his examination,” should have added, “ unless he 
shall have studied for the medical profession.” 
If what Mr. M. suggests were adopted, I think it would be a 
great injustice to a person who had studied the one profession to 
be compelled to devote so long a term of years to the attainment 
of that which is so nearly allied. 
The physiology of the one is nearly applicable to the other ; the 
