TRYPANOSOMIASIS IN THE ANGLO-EGYPTIAN SUDAN 



137 



J^< 



There were also present thick spirillar form lii^e two vibrios attached end to end, very 

 similar to those found in Monkey 1. 



KUhifi/s. — These exhibited a subacute nephritis, and tlie capsules were slightly 

 adherent. 



Boiie-iiKirrair. — Not examined. 



Curiously enough in smears made from the splenic pulp there was not a vestige of a 

 trypanosome to be seen, while in the liver specimens both forms were present in 

 abundance. 



Exp. 10. Monkey 3. — {C'emijiif/icciix sahenx) weight 2*7 kilos. Inoculated 

 subcutaneously with about 1 c.c. blood from Monkey 2 on March 8th. Peripheral blood 

 examined each day thereafter and trypanosomes in small numbers found for the first time 

 on March 13th. 



The incubation period was, there- V^ 



fore, just about five days. 



Afiirch lith. — Both long and short > 



forms were seen, the former greatly ^^■- 



preponderating. In the cover-glass 

 preparation they appeared to be of 

 exceptional length and extremely 

 active. On staining in the usual way 

 no increase in length was manifest. 

 Probably some shrinking had taken 

 place during the preparation of the 

 specimen. Both forms were well seen 

 but the short ones were very much in 

 the minority. 



A considerable number of very 

 broad trypanosomes were present. 

 These were probably parasites in the 

 stage prior to longitudinal division (Fig. 70). Some granules v/ere noted in the short 

 forms, and in one of these latter the nucleus was observed to be at the junction of the 

 middle and posterior thirds. 



M(tri-h 18///. — The monkey was found to be very ill. It was lying in its cage in a 

 semi-prone condition. 



The blood on examination was found to be swarming with parasites, short forms being 

 now as numerous as the broad forms previously mentioned. 



This monkey was then treated with blood serum injections ami its further history will 

 be considered under the heading Treatment. 



Being in extremis it was chloroformed on the following day (March PJtli). It had 

 lost half a kilo in weight. 



Post-inurtiiii. — Stomacli, congestive patches towards the pylorus. No ulceration. 



Intestines. — Normal. 



Mesenteric glands enlarged, giving a beaded appearance to the mesentery. 



Sjileen. — Weight, 23 grams. Large, congested. In a smear from the cut surface of 

 the organ curious involution forms were found, one closely resembling the figure of a dead 



V 



Fin. 70.— Dividing Vaclolateu Fokws, Monkey 3 (x 1750 diam.). 



