H. S. Stannus 
309 
pigment, but no means of testing for this were available. The supra¬ 
renal capsules were of a deep yellow colour. In one case the right 
kidney contained sixteen small calculi, the largest being of the size of 
a pea. The spleen appeared normal to the unaided eye, in consistence, 
colour, etc. Subperitoneal haemorrhages were marked in the omentum 
and mesentery. The fourth stomach showed submucous haemorrhages 
in one case. In the large and small intestines there were occasional 
haemorrhages into the substance of their walls. The superficial 
lymphatic glands showed no marked enlargement; those at the base 
of the tongue also were not enlarged. Those in the posterior medias¬ 
tinum, at hilum of liver, in mesentery, etc., were enlarged, of a grayish 
colour, diffluent and contained a large amount of fluid. The fat in one 
case was of a deep yellow colour as if bile-stained. 
Microscopical Examination was confined to the blood during life, 
and to smears from various organs and blood after death. 
Sick animals, in which a fatal termination had occurred, invariably 
showed organisms in their blood : they were never found in any very 
large numbers and did not apparently increase in number rapidly as 
the illness progressed. In those animals recovering rapidly after a few 
days’ illness and examined after a week’s interval, I was unable to find 
parasites in the peripheral blood. On the other hand in a few animals 
which had been ill for several months and still presented symptoms 
such as staring coat, emaciation and a certain degree of listlessness, I 
found organisms in the blood but in small numbers. All examinations 
were made by means of smears stained with Leishman’s stain. 
The peripheral blood, during life and subsequent to death, showed 
a small piroplasm 1 to be present in moderate numbers, rod-shaped and 
comma-shaped types being commonest; some of the former occurred in 
pairs, with varying separation noticeable at the red chromatin-stained 
poles as if division were taking place, with the production in some 
cases of a rod-shaped body with bipolar red staining. A few small 
ring-forms were also present but in much smaller numbers, showing a 
central vacuole with chromatin usually collected at one point. Ovoid 
forms were rather more common, with as before a central vacuole. 
Another form showed characters midway between this ovoid form and 
the bacillary, that is to say with a chromatin mass at one end; the rod 
1 In a drawing accompanying Dr Stannus’ paper, parasites are figured which appear 
identical with Theileria parva. The corpuscles contained forms similar to those illus¬ 
trating the paper by Nuttall and Fantham, Parasitology, in. No. 2, PI. XII, especially 
figs. 1, 3, 15, 20, 25.—G.H.F.N. 
Parasitology in 
20 
