EXTRACTS FROM GERMAN PERIODICALS. 
461 
hreds of epethelial tissue were dislodged from the mucosa, 
"he submucosa and muscular fibers of the lower bowel were 
wollen, loose and congested ; numerous ecchymoses were 
isible throughout the expanse of membrane. In the rectum 
umbers of blueish lines, the dilated veins, were apparent, 
n individual herds, wounds along the colon or rectum, which 
light be considered as the source of the blood in the fecal 
ischarges, were not found. 
Regarding the astiology, it may be said that the plurality 
ttribute the lesions to wet seasons and wet grass, and 
ssert that in many years of drouth, when hay is fed, there is 
o “red diarrhoea.” This, nevertheless, is not absolutely 
*ue, since the disease has also counted its victims in dry 
weather, and, in some seasons of exceeding wet, has not been 
een. According to Huber, ranunculus acris and asgopodium 
rodagraria are more abundant in the years of this malady, i. 
they cause the affection. Opposed to this, Zschokke re- 
orts the affection occurring when the pastures were free ol 
lese growths. Why only one or two from a whole dairy 
lould suffer, and others of the herd enjoy immunity, is 
qually as little to be explained. Contemporary literature 
ffers no solution of the perplexity. 
Zschokke discovered in the masses of blood and mucous 
;nt him, an immense number of peculiarly refractive, round 
dls, possessing no nucleus; these he considered coccidien. 
1 this relation he was confirmed by others using the Susdorf 
lethod of examination, and also by the procedure of coloring 
reparations advanced by Rieck in the “ Dtch. Zt., f. Thier.” 
i all examinations at subsequent periods and outbreaks, 
lese round cells were invariably present; in the excrement 
: healthy animals in the same stable no such cells could be 
stected. The cells always possess the same morphological 
laracteristics, and are the same size. The conclusion that 
)me dependent relationship exists between the presence of 
tese coccidien and the appearance of the affection is justifia- 
e. In the shreds of membrane, by means of a 250 enlarge 
ent, there were from 50 to 100 examples of the cells in the 
dd of vision ; these were more abundant in the detached 
