114 Dr. A. Theiler. Transmission of Amakebe [Apr. 20, 



The kidneys were pale, the capsule was easily detachable and the urine 

 was clear. The exterior lymphatic glands were swollen. 



The microscopical examination of the blood proved the absence of any 

 parasites. In the lymphatic glands the so-called plasma bodies of Koch 

 were found and described as rather small, viz., agametes and young agamonts 

 (according to Gonder*) ; the same observation was made in preparations of 

 the spleen. 



Diagnosis. — East Coast fever. 



(2) Calf 1143.— On February 14, 1911, this calf was infested with 

 10 adult brown ticks of the same lot obtained from Uganda. On February 15 

 seven of these ticks were found attached. After an incubation time of 

 13 days a typical fever curve ensued, which, however, never reached high 

 records. The animal died on the 24th day. 



On the 15th day after the tick infestation both blood and glands were 

 examined and the result was negative. The examination on the 17th day 

 revealed rare agamonts in the prescapular glands, but no parasites in the 

 blood ; on the 20th day both agamonts and gamonts were found in the 

 lymphatic glands in a fair number, and Theileria parva was frequently met 

 with in the red corpuscles. 



Post-mortem Examination of Calf 1143. — Eigor mortis was present. The 

 condition was rather poor. All external lymphatic glands were very much 

 swollen. The lungs had not collapsed ; there were some patches of red 

 hepatisation in right anterior lobe and a small area in the left lobe. The 

 lesions of hyperaemia and oedema were pronounced. There was a fibrinous 

 coagulum in the trachea. 



The bronchial and mediastinal lymphatic glands were enlarged and 

 oedematous. The heart contained coagulated blood. Both the endocardium 

 and the myocardium were normal. The liver was enlarged, the margins were 

 rounded, the colour was reddish brown, the parenchyma was rather soft. 

 The bile was green, thick, and viscid. 



The spleen measured 30 cm. by 9 cm. ; the pulp was soft and jam-like, 

 and the trabeculae were indistinct. The mucosa of the fourth stomach was 

 slate-coloured ; there were a few small heemorrhagic ulcers. The mucosa of 

 the jejunum showed longitudinal slate- coloured streaks. The mucosa of the 

 ileum was slightly thickened, and dotted with punctiform haemorrhages. 

 The mucosa of the caecum was thickened, the blood-vessels were injected, 

 and there were patches of hyperaemia. The mucosa of the colon was slightly 

 swollen and slate-coloured. The mesenteric glands were much enlarged and 



* 'Annual Report of the Government Veterinary Bacteriologist, Transvaal, S.A.,' 

 1909—10. 



