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Trypanosome Diseases of Domestic Animals in Uganda. 

 I. Trypanosoma Pecorum. 



By Colonel Sir David Bruce, C.B., F.E.S., Army Medical Service ; Captains 

 A. E. HameRton, D.S.O., and H. E. Bateman, Eoyal Army Medical 

 Corps ; and Captain F. P. Mackie, Indian Medical Service. (Sleeping 

 Sickness Commission of the Eoyal Society, 1908-9.) 



(Eeceived May 13,— Eead June 16, 1910.) 

 [Plates 11 and 12.] 

 Synonyms. 



Trypanosoma dimorphon (Button and Todd). 



Trypanosoma congolense (Broden). 



Trypanosoma confusxi^m (Montgomery and Kinghorn). 



Dr. Edington's trypanosome from Zanzibar (Bruce, Hamerton, and Bateman). 

 Trypanosome from Cliai-Chai, Zambesi, Zululand (Tlieiler). 

 Trypanosome from Southern Khodesia (Bevan). 



Introduction. 



As might be expected from the tropical nature of the country, Uganda 

 suffers much from protozoal diseases, and as the wealth of the natives 

 consists principally in cattle, goats, and sheep — the King and chiefs having 

 huge herds — there is much loss. 



To give an idea of the enormous mortality which must take place among 

 the herds of cattle in Uganda, Sir Apolo Kagwa, K.C.M.G., the Prime 

 Minister, may be quoted. He informed the Commission that during 1908 he 

 had 139G cows, which had 2021 calves, and of these calves 709 died — 35 per 

 cent. Further, of cows, bulls, and full-grown bullocks, there had died 351. 

 This makes a total of 1060 deaths in one year. Tlie number of the whole 

 herd is not given, but may be put down at 4000. This means a yearly 

 deatli-roll of al)out 25 per cent. During the same year the Government 

 Transport Department in Entebbe lost 15G oxen between June and November. 



During 1909 the (Jonimission had the opportunity of investigating several 

 outbreaks of trypanosome disease among domestic animals, one among the 

 transport cattle at Entel)bo (lat. 0° 3' N., long. 32° 30' E.) ; another at 

 Kampala (lat. 0° 18' N., long. 32° 35' E.) ; a third at the Uganda Company's 

 estate at Namukekera (lat. 0° 40' N., long. 32° 17' E.) ; a fourth at 

 Mr. Walsh's farm at Kal)ula Muliro, a few miles west of Namukekera ; and 

 a fifth at the Mabira liubber Estate (lat. 1° 50' N., long ;52° 40' E.). 



