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Col. Sir D. Bruce and others. Development of [Feb. 15, 
Figs. 60 and 61.—Zrypanosoma gambiense from salivary glands, 25 days after infected 
feed. 
Fic. 62.—7.. gambiense from salivary glands, 30 days after infected feed. 
Fie. 63.—Z.. gambiense from salivary glands, 42 days after infected feed. 
Fias. 64, 65 and 66.—7. gambiense from salivary glands, 44 days after infected feed. 
Figs. 67 and 68.—7. gambiense from salivary glands, 46 days after infected feed. 
Frias. 69 and 70.—7. gambiense from salivary glands, 53 days after infected feed. 
Fias. 71 and 72.—7". gambiense from salivary glands, 56 days after infected feed. 
Figs. 60—72 represent aberrant forms of Trypanosoma gambiense seen in the salivary 
glands. The first thing to be noted is the fact that the trypanosomes do not appear in 
the salivary glands until a late date ; in this case the earliest appearance is 25 days after 
the infected feed. How they reach these glands is up to the present unknown. In 
what shape they reach the glands is also unknown. Figs. 64, 65, 69 and 71 might be 
said to point to some process of segmentation, of which the finished product is 
represented by fig. 66. 
