310 
Piroplcismosis in Cattle 
is wider in the middle, with a slight appearance of a vacuole. The size 
of the rods was from 1 to 2 p,; the rings were about 1 y in diameter 
and ovoid forms T5 by '75y. 
In the chronic cases coccoid and rod-shaped organisms predomi¬ 
nated; the number of parasites being very small and in no cases were 
they numerous. 
There was some variation in the size of the erythrocytes and 
poildlocytosis was noted. In the chronic cases there was a very con¬ 
siderable degree of anaemia. 
Smears from the spleen presented a limited number of erythrocytes 
containing parasites. Smears from liver, kidneys and glauds showed 
no parasi tes. 
Inoc ul ability. Inoculation experiments were commenced but had 
to be given up, and no results were obtained. 
Remarks. The type of piroplasmosis under consideration does not 
appear to correspond with East Coast Fever (P. parvuvi), while the 
microscopical characters of the parasite are not those of P. mutans ; 
the P. bigeminuvi type being of course out of the question. It would 
appear to me that we are dealing with a form (probably one of many 
to be found in Africa) having affinities with those recently found in 
Uganda, and I believe in the Sudan. 
Since leaving the Mombera District, the disease has continued and 
many more animals have succumbed; spleen smears from some of these 
animals have been received and I have had the opportunity of staining 
them by Giemsa’s method. Numerous piroplasmata have been demon¬ 
strated in the erythrocytes contained in the spleen and the so-called 
“ blue bodies” { Koch’s Granules) have been found. (See Plate XXVIII.) 
These bodies have been looked upon by various authorities as 
pathognomonic of East Coast Fever and latterly on the finding of these 
elements a diagnosis has been made, Avhile symptoms and post-mortem 
findings have been relegated to a secondary place. If this is to hold 
good then the disease in question in this country is East Coast Fever, 
and in this light it is interesting to compare it with one recently 
described by Col. Sir David Bruce and his colleagues in Uganda under 
the native name “ Amakebe” ( Proceed. Roy. Soc. B. Vol. 82, 1910), a 
disease very fatal to calves there and which he concludes is East Coast 
Fever. 
Interest lies in the fact that “ blue bodies ” were found in the 
spleen, etc. (rarely in the blood) though some of the universally 
described pathological lesions such as infarcts in the kidneys were 
