TRYPANOSOMIASIS IN THE ANGLO-EGYPTIAN SUDAN 147 



Exp. 33. Gerbil 19. Weight, 42 grams. — Red cells showed granular basophilia. 



May 21t](. Inoculated with a few drops citrated blood, in which at the time no 

 trypanosomes were found, from Monkey 7 (page 146). 



June 6fh. Trypanosomes present but not numerous, and only long, lively forms seen. 



June 28th. Many trypanosomes, mostly long forms. 



June SOffi. In extremis, chloroformed. Weight, 23 grams. Posl-morteni. Slight 

 conjunctivitis of left eye. Spleen enlarged. No ulceration in the- stomach, but non- 

 adherent blood clot present, as well as a bunch of nematodes. 



In a smear made from one of the clots degenerated trypanosomes were found (Note by 

 Major Dansey Browning). 



The following experiments were partly or wholly performed by Mr. Fricdrichs, my 

 laboratory assistant, when I was absent on leave. They were performed merely for the 

 purpose of carrying on the strain, but some notes were kept both by IMr. Friedrichs and by 

 Major Dansey Browning, who from time to time kindly supervised, especially when post- 

 mortems were performed. 



Exp. 34. Monkey 10 [Cercointhecus mhnus). Weight, 23 kilos. — June 15th. 

 Inoculated subeutaneously with "25 c.c. blood from Monkey 8. 



June 2\sf. Blood examined for first time. Trypanosomes, both forms, present, the 

 majority being long forms. 



July ]4M. Animal weak and ailing. 



July 16th. Found dead. Weight 12 kilos. 



Post-mortem. — Only points noted were erosion of stomach and congestive patches in 

 the small intestine. Smears from these areas proved negative as regards trypanosomes or 

 spirilla. 



Exp. 35. Monkey 12 [Cercopithecus sabceus). August 14th. Inoculated from 

 Monkey 10, '25 c.c. subeutaneously. 



August 24:th. Large infection found. 



August 29th. Found dead. Weight, 22 kilos. 



Post-mortem. Apical pneumonia present. Trypanosomes in heart's blood degenerated. 

 An attempt to continue the strain by injection of this blood into Monkey 13 failed, this 

 constituting Exp. 36. 



Exp. 37. Gerbil 20. July 2Sth. Inoculated with 25 c.c. from Gerbil 19. 



July 1th. A few trypanosomes found. 



July 29th. Very weak. 



August Srd. Found dead. Bacterial invasion. No ulceration. 



Exp. 38. Gerbil 21. July 29th. Inoculated subeutaneously with 5 c.c. blood from 

 Gerbil 20. 



August 2nd. Blood infected. 



August 8th. Blood swarming with trypanosomes. 



August 19th. Found dead — decomposed. 



Exp. 39. Gerbil 22. August 8th. Inoculated subeutaneously with 25 c.c. from 

 Gerbil 21. 



August nth. Blood swarming. 



August 28th. Found dead. Spleen enlarged. No ulceration. 



Exp. 40. Gerbil 23. August 20th. Inoculated subeutaneously from Gerbil 22. 



August 22n(l. Slight infection. 



