COMPARATIVE LESSONS OF BRAIN WOUNDS. 
301 
thing takes material from it and inoculates another, or the latter 
is wounded somewhere and inoculates itself with effluvia from 
such an animal, but direct infection from animal to animal does 
not occur. 
In this way anthrax is conveyed by flies biting a sick animal 
and then going to a healthy one and sticking their soiled probos¬ 
cis, with anthrax germs upon it, into the skin of such, and the 
disease occurs in No. 2, and so it may be carried to others. 
Is that contagion ? 
Or a man has a cut on his finger and has the care of such cat¬ 
tle, and gets some fresh manure on his fingers and dies of malig¬ 
nant pustule. 
Is that contagion ? 
Had the stable been kept properly darkened in the first place, 
and fly-screens on the doors and windows, the disease would not 
have been transmitted to the other cattle, and the sick ones could 
have died among them and no others have acquired the disease, 
if other necessary precautions as to food, water and utensils had 
been taken. 
In the second case, had the man not had the wound on his 
finger, or had he had it properly covered and been more cleanly 
about his work, he could have worked among anthrax diseased 
cattle indefinitely and remained well. 
{To be continued .) 
COMPARATIVE LESSONS OF BRAIN WOUNDS. 
By Dr. G. Archie Stock well, F.Z.S. 
(Written especially for the American Veterinary Review.) 
Comparison of the crania of vertebrata reveals in each in¬ 
stance a citadel carefully walled and fortified about, to meet the 
necessities of the class or types in protecting the organ of intelli¬ 
gence and will. The very points that, to superficial observation, 
would be deemed the most vulnerable, on closer and more careful 
inception prove to be built up and buttressed in an extraordinary 
maimer, with here an arch, there a ridge, again an angle or pro- 
