ESSENTIALS OF TROPICAL MEDICINE. 

 PLATES A TO E FROM REPORTS OF SLEEPING SICKNESS COMMISSION. 



Plate A. 



Mott. 



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Figs. 1-4. 

 Appearances presented by 

 the vessels of the brain in a 

 very chronic case of sleeping 

 sickness. 



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Fig. 2. 

 Small vessel, with 

 plasma cells (/) and large 

 granule cells, which I 

 have termed morular cells 

 (;«). They correspond to 

 Kornchen Zellen of 

 Alzheimer. Magnifica- 

 tion 500. 







S 



P 



TJion. 



.1 



Fig. I. 

 Transection of small 

 vessel of medulla oblon- 

 gata, showing perivas- 

 cular infiltration with 

 hyaline lymphocytes. In 

 the centre of the blood 

 vessel is a trypanosome 

 (i). Amidst the blood 

 corpuscles there are 

 numerous small and large 

 mononuclear leucocytes 

 ijuon. /.). Magnification 

 500. 







V. 



•••v.'.-'- 



• V** ••'■ ."^ ** 



••••• • .1 ; » 





TTL 





Fig. 3. 

 Small vessel dividing 

 into two capillaries, show- 

 ing nuclear proliferation 

 of the endothelial cells ; 

 in the neighbourhood are 

 plasma cells (/), lym- 

 phocytes (/), and glia 

 cells (g). Magnification 

 500. 



li 





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Fig. 4. 

 Section of spinal gan- 

 glion, showing lympho- 

 cyte interstitial infiltra- 

 tion (/). Magnification 



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