E. A. A. GRANGE. 
5 6 4 
act under the authority of the City Health Commissioner, hav¬ 
ing been appointed City Meat Inspector. 
It has been questioned whether this board has the legal 
right to quarantine such cattle, if they are not considered dan¬ 
gerously inimical to the health of other cattle. 
This is a question that would probably have to be decided 
by the courts, but so long as it can be carried out as a public 
health measure it surely ought not to be opposed by any right- 
minded citizen. 
Chicago is the great cattle and beef market of the world. It 
is partly for the maintainance of the good reputation of this 
market of the west that this work has been inaugurated, while 
at the same time it gives protection to home as well as foreign 
consumers of our beef against the danger of contracting this 
formidable disease. 
I believe that it is a great and a good work, and hope to see 
the time when all the states will enfore similar inspections at 
their large packing centers, abbatoirs, and stock yards. 
THE EXTERNAL CONFORMATION OF THE HORSE. 
By Prof. E. A. A. Grange, V.S., Michigan.* 
(Continued from page 4<p<? and Concluded.) 
As far as I am able to conceive from my knowledge of 
the anatomy of the hind leg this circular motion can only be 
produced, without increased expense to muscular force, by the 
peculiar shape of the bones entering into the formation of the 
true hock joint, the action of which, as pointed out by Prof. 
Williams, of Edinburgh, is like a screw, and in our opinion there 
is little doubt but that this screw-like motion is continued down 
to the foot under certain circumstances. This screw-like motion 
is again important during rapid movements in trotting, especially 
in the horse with much hock action, as it prevents him from 
*A reprint from Bulletin no, Experiment Station, State Agricultural College. 
