after Death from Snake-bite. is 
Puate II. 
Germinal matter, or free nuclei, from the poison-gland of young 
Australian Black Snake. 
e 
@ s) 
=) 
@ 
x 400 diameters. x 1200 diameters. 
From a drawing by the Author. 
Determined not to lose the little poison I had, [minced upthe 
glands and inserted them beneath the skin of the abdomen 
ofa dog. The severe illness and speedy death of one of 
my children prevented me continuing the inquiry. It 
was, however, proceeded with by Mr. Lawrence, one of my 
class, who has been kind enough to forward me the following 
notes :— 
“May 11th, 1867.—Professor Halford inoculated a dog 
with the poison of a young black snake, about eighteen 
inches long, by inserting the gland beneath the skin of the 
abdomen. The same evening he examined a drop of blood 
from the ear, and found the number of white corpuscles 
greater than in normal blood, and at least two cells similar 
to those seen after poisoning by the cobra-di-capella, but of 
somewhat less size. The dog at this time did not show any 
very marked symptoms—he had vomited once and seemed 
unwilling to move about. 
“12th.—Professor Halford being unable to continue his 
observations to-day, I examined the blood. The number of 
white corpuscles was much increased. After much dilution 
with solution of magenta, each field presented about twenty- 
four of these bodies, among which a few of the characteristic 
cells could occasionally be seen. As regards size, there was 
not here such a striking contrast between these cells and the 
white corpuscles as there was in the cobra-case, when a 
single glance was sufficient for diagnosis between them ; but 
still the nucleus being always single, the presence of the — 
macula and a peculiar clearness of the cell are, I think, 
