TRANSMISS1BILITY OF TINEA TONSURANS. 
287 
these five had twins while of seven, which it had fecun¬ 
dated, and which had belonged to the establishment, two had 
also twins—one two males, the other two females. All these 
cows had been kept in the same way. In the third and 
fourth year of this bull, it fecundated a similar number of 
cows, but there were no more twins. 
Lessona believed that trustworthy statistics relative to the 
annual number of twins produced in the bovine species, would 
demonstrate that these instances are common in the provinces, 
where intelligent breeders are alive to the advantages agri¬ 
culture may derive from perfecting the breeds of cattle ; and 
that it may be laid down as a rule that when the most perfect 
. cow in a herd—one which gives the largest quantity of milk, 
brings forth a male calf, the latter should not be allowed to 
act as a breeder unless it had been suckled for a whole year. 
THE TRANSMISSIBILITY OF TINEA TONSURANS 
FROM THE LOWER ANIMALS TO MANKIND. 
By G. Fleming, M.R.C.V.S., Royal Engineers. 
Through the courtesy and kind thoughtfulness of Dr. 
Tilbury Fox, I have been favoured with a copy, from the 
4 Clinical Society’s Reports/ of a notice of some cases of tinea 
circinata in man, which was proved to have been communi¬ 
cated to them from a horse. As we shall observe hereafter, 
there is no absolute novelty in such transmission of the 
disease; but the Doctor, with that ability and discrimination 
which have constituted him so eminent an authority among 
dermatologists, has presented the history of the occurrence 
so concisely and clearly to the medical public, and has, in 
addition, enhanced its value by some most judicious and 
rather novel observations, as to render it deserving the 
particular attention of comparative pathologists, the malady 
being by no means an uncommon one in the lower animals. 
It appears that not long ago a medical friend brought to 
Dr. Fox a coachman and a groom affected with tinea circin¬ 
ata (ringworm of the body) in an exaggerated form, the affec¬ 
tion being more particularly localised about the backs of the 
fingers, the hands, and the front and outside of the forearms. 
The patches were numerous: there were a dozen or more on 
the arms and hands of each of the men, and a third groom 
was similarly affected. Both arms were alike involved. The 
