REPORT ON SOUTHERN CATTLE FEYER. 
21 
surface at the entrance of the nostrils. According to Lecoq, 
we find in the ass and mule the opening of the lachrymal 
canal is at the inner surface of the outer wing, and not near 
the inferior commissure as in the horse. 
REPORT ON SOUTHERN CATTLE FEVER, 
By W. H. Harbaugh, V.S., Richmond, Va. 
Read before the Virginia State Veterinary Medical Association, Richmond, Va., 
January 2, 1896. 
During the past season I was unable to spare the time 
necessary to devote to any extended experiments in con¬ 
nection with this disease, but 1 did not entirely neglect the 
subject. 
As you will, no doubt, remember, I did not question the 
discoveries of the Bureau in regard to the ticks causing the 
disease outside the permanently infected place, and further, I 
expressed full belief in Smith’s protozool micro-organism. 
For the purpose of being better qualified to study the dis¬ 
ease and its phenomena, I confined my observations to the 
tick theory, and made as close a study of the ticks as possible 
under the circumstances. 
1 was peculiarly fortunate in this respect in having the 
assistance of Dr. Cooper Curtice, to whose studies we are in¬ 
debted for a detailed life-history of the cattle tick, the boophiliis 
bovis, which is, so far as known at present, the only carrier of 
of the cause of Texas fever. 
After being able to distinguish the boophilus bovis from the 
other varieties of ticks, I made collections of them which I 
sent to different veterinarians outside the territory where 
the tick naturally exists. 
The arrangement with these veterinarians was to place 
the young ticks hatched from the eggs of the adult ticks I 
sent them on a susceptible cow and report the result. Or, in 
other words, to repeat the experiments of the Bureau in 
detail. 
Prof. E. P. Niles was the only veterinarian who took the 
