472 
DESCRIPTION OF FIGURES 
In all cases, unless otherwise stated, the figures have been drawn 
with a long tube Zeiss, 2 mm. apo. objective and 18 or 27 eyepiece. 
PLATE XXXVIII 
Trypanosoma gambiensc 
Figs. 1, 2, 3 from peripheral circulation stained with iron 
haematoxylin. 
Figs. 4 and 5 stained with Breinl’s stain. 
Fig. 1.—Trypanosome in the resting condition. Nucleus single, not 
dividing. Intra-nuclear centrosome single. 
Fig. 2.—Trypanosome showing early stages in division of nucleus, 
intra-nuclear centrosome divided ; extra-nuclear centro¬ 
some also divided, new flagellum growing. 
Fig- 3 - — Trypanosome in the same stage as preceding. Intra-nuclear 
centrosome completely divided ; the new flagellum is also 
seen during the course of its development. 
F*ff- 4 - Trypanosome is in the same condition as fig. 1, showing also 
the metabolic granules in different parts of the cell. 
Fig- 5 - -Trypanosome wherein two undulating membranes have 
been formed, showing also the metabolic granules. 
Fig. 6.— Trypanosome in much the same condition as in fig. 1, but 
showing early stages in development of the new flagellum. 
F lg ' 7 — Later stage in the division, showing the mode of division of 
the intra-nuclear centrosome, amitotic fission of the rest 
of the nucleus, and the duplication of the extra-nuclear 
centrosome. 
Fig. 8 Trypanosome showing three flagella and three nuclei in 
different stages of division. 
Fig. 9 —The same showing three flagella and four nuclei. 
iff- IO - The same showing two flagella and two nuclei. 
