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BakewELu.—On Inflammatory Action in dead Animal Bodies. 115 
5 p.m. temp. 90°F. The cut extremity of each piece was cloudy and 
whitish, as viewed through a lens of 14 inch focus; vessels looked more 
marked and prominent than when put in; outline of pieces not so sharp 
and well marked as those in the water. 
‘* Under the microscope, round nucleated cells were seen projecting 
from the cut surface; a few of such cells were floating in the nutrient 
fluid; several dark-coloured cells round, containing numerous nuclei, were 
seen, 
‘At 5.30, these were obscured by a cloud of white cells with granular 
contents. 
“14th, 9 a.m.: The little phials in which the tails had been placed 
showed a white cloudy precipitate, about } inch deep. On microscopical 
examination, this proved to be granular protoplasm in amorphous masses, 
but showing faintly a commencement of segregation into cells. In the fluid 
were floating about (A) innumerable altered red corpuscles; (B) many 
round cells of a yellowish or fawn colour, containing two or three nuclei ; 
(C) innumerable leucocytes ; (D) columnar and other epithetial cells. 
“The tails themselves showed the following changes:—1st, all the red 
corpuscles were gone; none were to be seen in the most transparent parts ; 
2nd, all the pigment cells were broken up into small portions, irregular in 
outline, but much rounder and less angular than the normal pigment cells 
of the tadpole ; 8rd, the striped muscular tissue was in a state of incipient 
fatty degeneration ; 4th, over the whole of the skin were crowds of 
leucocytes covering it, and easily detached.” 
This is a fair sample of scores of similar experiments. They proved that 
leucocytes originated in an inflamed part, and were not brought to it from 
the blood. 
I then tried what could be done with warm-blooded animals, but was for 
a long time only partially successful, owing to not using a proper nutrient 
fluid at a sufficiently high temperature. The following experiment with 
egg-albumen and water is interesting, as showing that even with this 
the commencement of inflammation could be produced in a warm-blooded 
animal, 
December 23rd, 1878.—Placed portions of the liver, the peritoneum 
from the mesentery, and voluntary muscle of a duck, in a mixture of egg- 
albumen and water, kept in contact with my own body. The peritoneum 
was in a separate bottle. Between two and three hours afterwards, 
there was evident (naked eye) turbidity of the albumen in which the peri- 
toncum was placed; the membrane appeared swollen and milky. The 
turbidity of the bottle in which the muscle and liver were placed was not so 
marked, Both appeared paler, 
