310 REPORT OF THE COMMISSIONER OF AGRICULTURE. 
Respiratory organs.—Congestions and ecchymosis were common on the 
larynx, windpipe, and’pleure. Though the lungs never entirely escaped, 
in one case only was an entire lung hepatized. Exudation and consoli- 
dation of the lung-tissue were in a few instances confined to the anterior 
lobes, but as a rule a few of the posterior lobulettes only were affected. 
In some cases exudation was confined to the interlobular spaces, which 
accordingly appeared as broad lines circumscribing the lighter-colored 
lobes, with which they contrasted strongly in color because of their dark 
blood-stained exudate. Even when the lobules were also the seat of ex- 
udation, they were mostly lighter than the interlobular spaces, in this 
difiering from the ordinary inflammation of the lungs, in which the latter 
appear as yellow lines. The bronchia of the affected lobules were invari- 
ably filled with a frothy mucus, while in eight subjects they contained 
numerous lung-worms (Strongylus elongatus). Itis worthy of notice that 
in nearly all cases in which lung-worms were found, the lobules into 
which the exudate had taken place were invariably connected with the 
infested bronchia. In one case the windpipe presented along its whole 
length a yellowish-white false membrane similar to that described as ex- 
isting on the large intestine. In another instance a’blocked bronchium 
presented a small circular slough not unlike the commencing slough of 
the intestinal mucous membrane. Inno case did I meet with the caseous 
blocking of the bronchia recorded by Klein. 
In one case only was there extensive liquid effusion into the pleura. 
This was of a dark blood color, and, besides, the blood-globules contained 
myriads of actively-moving bacteria. False membranes of recent forma- 
tion also connected the pulmonic to the phrenic pleure in this case. 
The right lung was hepatized throughout. In the same subject the 
pericardium was the seat of a similar exudate, and fibrinous coagula 
connected the cardiac to the mediastinal layer. In three cases the lin- 
ing membrane of the heart was the seat of spots of eechymosis, by pref- 
erence on the papillary muscles. The right heart usually contained a 
clot of blood which showed a buffy coat in three cases only. In two 
cases there was a clear translucent exudation around the auricule ventric- 
ular furrow, which, under the microscope, showed fat cells and granules 
and a network of capillary vessels in which the blood-globules moved 
freely, and showed no tendeney to adhere. 
Brain.—In one case there were four hemorrhagic spots on the dura- 
mater, averaging about one line in breadth. 
MICROSCOPIC OBSERVATIONS. 
Skin.—Microseopic sections through the affected portions of skin 
showed the various grades of congestion; congestion with blocking of 
the capillaries, and excess of lymphoid and large granular cells and 
granules staining deeply with coloring agents; and congestion, with ex- 
travasation and the formation of necrotic spots. (See Plate IX, Fig. 1.) 
With the earlier congestion there is more or less dropsy of the skin and 
consequent separation of its intimate textures, while in the later or more 
Severe conditions a fribinous exudation takes place, and this may even 
exude from the surface and concrete there in dark scabs. In no instance 
did I meet with the formation of pus in the skin, and notwithstanding 
the numerous minute extravasations into the true skin and cuticle, in 
one case only was there sufficient destruction of a superficial vessel to 
lead to a temporary hemorrhage. One feature which I have not seen 
mentioned by other observers is the implication of the bristle follicles, 
It has been al ready stated. that the pink papular eruption is mostly ob- 
