516 MITZMAIN. 



8. The intimate relation in the feeding habits of Stomoxys 

 and of house flies has been pointed out. Stomoxys has been 

 demonstrated to provide through its bites the infection of Miisca 

 domestica and other dung flies. These flies have been demon- 

 strated to act as carriers, harboring the surra organisms for 

 several hours. 



9. No evidence was obtained to indicate that Tr. evansi is 

 hereditarily transmitted to the offspring of S. calcitrans. The 

 larva of this fly fed on surra blood does not continue to harbor 

 the trypanosome and the fly is "clean" upon reaching maturity. 



10. It is demonstrated that the individual glass-tube method is 

 the most suitable for applying flies in feeding on experimental 

 animals and for keeping flies for long periods under laboratory 

 conditions. 



REFERENCES. 



(1 

 (2 

 (3 

 (4 



(5 



(6 



(7 



(8 



(9 



(10 



(11 



(12 

 (13 



(14 



(15 



(16 

 (17 



Summers. Revision of the Oriental Species of Sto7noxys. Ann. & 



Mag. Nat. Hist. (1911), VIII, 8, 235. 

 Bruce. Sleeping Sickness Investigations in Uganda. Bull. Sleeping 



Sick. Bur. (1910), 2, 251. 

 Bruce, Hamerton, Bateman, and Mackie. Trypanosoma pecorum in 



Uganda. Proc. Roy. Soc. London (1911), B, 82, 468-479. 

 Montgomery and Kinghorn. A Report on Trypanosomiasis of Dom- 

 estic Stock in Northwestern Rhodesia. Ann. Trop. Med. & Parasit. 



(1908), 2, 129. 

 DuTTON and Todd. First Report of the Trypanosomiasis Expedition 



to Senegambia. Mem. Liverpool School Trop. Med. (1903), No. 2, 



40. 

 Theiler. Quoted by Laveran and Mesnil (18), p. 202. 

 Sander. Tropische und Subtropische Viehseuchen. In Mense's Hand- 



buch der Tropenkrankheiten. Barth, Leipzig (1906), 3, 695-713. 

 Martin, Leboeuf, and Roubaud. Bull. Soc. path, exotique (1908), 1, 



356. Quoted in (35), pp. 150-151. 

 NOVY. The Role of Protozoa in Pathology. Proc. Path. Soc. Phila. 



(1907), 10. 

 Austen. A Monograph of the Tsetse Flies. The British Museum 



of Natural History, London (1903), 304. 

 Castellani and Chalmers. Manual of Tropical Medicine. Bailliere, 



Tindall, and Cox, London (1910), 258. 

 SivoRi and Lecler. Quoted by Laveran and Mesnil (18), p. 307. 

 SlEBER and Gonder. A Case of Dourine under Conditions in which 



the Usual Method of Infection is Excluded. Abstracted in Bull. 



Sleeping Sick. Bur. (1911), 3, 164. 

 ScHAT. Verdere Mededeelingen over Surra. Mededeel Proefstation 



Oost-Java (1903), III, No. 44. Copied from (35), p. 149. 

 Manders. Surra as it occurs in Mauritius. Journ. Roy. Army Med. 



Corps (1905), 5, 623-626. 

 Daruty. Quoted in (18), p. 279. 

 DiEXONNE. Quoted in (18), p. 280. 



