NOTE ON THE RINGWORM FUNGUS. 
543 
again by Dr. Hertwig ; horse to man, a case referred to by 
Youatt in the Veterinarian , 1831, p. 223, but not given in 
detail ; I have not been able to find the case recorded, and 
should be much indebted to any one who could refer me to it. 
Horse to dog ; Mr. Youatt twice succeeded with this experi- 
ment ; he does not, however, furnish particulars. ( Veterina- 
rian , 1831, p. 223). Ox to fowl ; a single experiment by Dr. 
Ashburner in 1828. Ox to dog; an experiment by Mr. 
Youatt; no details are, however, given. Sheep to rabbit 
(referred to in Veterinarian for June) ; Professor Simmonds's 
experiments ( Veterinarian , 1839, p. 372) ; the rabbits died 
on the sixth day after inoculation, a period which in other 
animals would be considered exceedingly short. (6) Can 
the disease be communicated by inoculating with the bitten 
party excised from another animal, and if so at how long 
an interval from the bite ? Some light might, perhaps, be 
thrown on the question as to whether the poison does or 
does not remain at the seat of inoculation until shortly before 
symptoms appear. 
NOTE ON RINGWORM: TRANSPLANTATION OF 
THE FUNGUS OF RINGWORM FROM CALF 
TO MAN. 
By the Same. 
It is well known that ringworm in the human subject is 
not infrequently caught from animals suffering under a similar 
disease. I cannot, therefore, claim, by the following expe- 
riment, to have added anything fresh to our knowledge of 
the disease in question ; but since a single carefully per- 
formed and successful experiment is more valuable as proof 
than a great deal of inexact evidence, I thought it might 
be interesting to place on record a case in which the fungus 
of ringworm or Tinea tonsurans ( Trycophyton tonsurans) was 
successfully transplanted from a calf to a man. 
On October 16th, 1869, a patch of skin on the outer side 
of my left arm was slightly scratched with a pin so as to 
roughen the epidermis but not to draw blood. The lower 
ends of four or five hairs, from a patch of ringworm on a 
calf, and which had been ascertained by microscopical in- 
spection to contain plenty of fungus, were laid on the rough- 
ened skin; there were one or two fragments of epidermic 
crust from the calf as well. The hairs and epidermic crust 
