Platk B. 



Mott. 



Fig. I. 

 Three large glia cells (,!?), their branches ending in a network around and upon a small vessel: 

 lymphocytes (/), and plasma cells (/>) are seen scattered about. Magnification 500. 



Fig. 2. 

 Small vessel, showing endothelial nuclei proliferated, and three plasma cells. Magnification 500. 



o 



m 



<^^- 



tK9 







^% 



^ 



2. 



>S.K.f 



QCL 



^«o 





9 J'ft" 



.0 







% 





i© t^ 



& 



^ 



t) 



..?* 



Fig. 3. 



A transection of a vessel 

 in a very chronic case of 

 sleeping sickness, show- 

 ing marked perivascular 

 infiltration. Magnifica- 

 tion 250, 





'«& 





v.. 



(^ 



I ^ 



o 



<9 



^<E> 



'H'. 



l_ 



% 



<^k 



Fig. 4. 

 (^ J Active prolifer- 



^-^ / ating young glia 



f cells found in 



great numbers in 

 sleeping sickness 

 tissues. The 

 pale nucleus, with distinct nuclear 

 membrane, contains chromatin 

 granules, with an arrangement in- 

 dicating mitosis. Surrounding the 

 nucleus is the pink-stained cyto- 

 plasm, with a tendency to form star- 

 like processes. Magnification 500. 



^sartfiP^^^^"*-" 



r\ 



^:) 



-^^ 



»f 



5. 



Fig. 5. 

 Two large morular cells from a very chronic case of sleeping sickness. Magnification 500. 



Fig. 6. 



Rod cells (Stabchen Zellen) are rarely met with, although occasionally appearances like fig. 6 are seen. 



Magnification 500. 

 A KeDey del 



Bde 3tDanieissoD,L'^''-lLth 



