PLATE IV 
PHOTOMICROGRAPHS OF GAMBIAN HORSE TRYPANOSOMES 
Fig. i. Horse trypanosome. Small 'tadpole' forms in the blood of a mouse on the appearance of the 
parasite in the peripheral blood. x 840 
Fig. 2. Horse trypanosome. From horse No. 1. x 840. 
Note the two stump}' parasites in centre of photo. 
Fig. 3. Horse trypanosome. From horse No. I. x 840 
Note longitudinal divisional forms in centre of photo. 
