556 



Sleeping Sickness 



he has written an excellent description, calling them Try- 

 panosoma gambiense.* The patient thus studied by Forde 



Fig. 191. Various species of trypanosoma: i, Trypanosoma lewisi 

 of the rat; 2, Trypanosoma lewisi, multiplication rosette; 3, Trypano- 

 soma lewisi, small form resulting from the disintegration of a rosette; 

 4, Trypanosoma brucei of nagana; 5, Trypanosoma equinum of caderas; 

 6, Trypanosoma gambiense of sleeping sickness; 7, Trypanosoma gam- 

 biense, undergoing division; 8, Trypanosoma theileri, a harmless trypano- 

 some of cattle; 9, Trypanosoma transvaliense, a variation of T. theileri; 

 10, Trypanosoma amum, a bird trypanosome; 1 1, Trypanosoma damonice 

 of a tortoise; 12, Trypanosoma solece of the flat fish; 13, Trypanosoma 

 granulosum of the eel; 14, Trypanosoma rajas, of the skate; 15, Trypano- 

 soma rotatorium of frogs; 16, Cryptobia borreli of the red-eye (a fish). 

 (From Laveran and Mesnil.) 



* See Forde, "Jour. Trop. Med.," Sept. i, 1902; Button, Ibid., Dec. 

 i, 1902; Button, "Thompson Yates' Laboratory Reports," 1902, v, 4, 

 part n, p. 455. 



