327 
fig. 38). Other forms were quite different. Only five of these 
well-marked forms were seen. The measurements are as follows 
Measurement I 
„ II ... 
„ III ... 
„ IV ... 
„ v ... 
„ VI ... 
Total length of parasite 
Width of nucleus 
8'o to ii'o/a 
5'6 to io'o/a 
2'2 to 27/X 
... i5’4 to 21*0/4 
... 132/A 
... 30 to 8'0/a 
... 44’c to 58-0/4 
2 ' 2 /A 
(0 Another form, seen in both fresh and stained preparations, 
which resembles T. mega is a wide trypanosome with large granules 
scattered through its body. Some had many granules (Plate XXVII, 
%• 34 ). others had few (Plate XXVII, fig. 33). Usually the granules 
stained a bright red, some of them, however, were refractile and 
remained unstained. Although the other granules in the same 
parasite were stained, we can say nothing concerning the origin of 
these possibly chromidial granules. 
These forms measure as follows : — 
Measurement 
I ... 
... 9'o to 15'0/A 
ft 
II ... 
... 4 ' 4 /a 
ft 
Ill ... 
... 4'4 to 5'0/A 
ft 
IV ... 
... i8'o to 27'0 /a 
ft 
V • ... 
... 77/4 
ft 
VI ... 
... 6'6 to io'o/a 
Total length of parasite 
••• 43'5 to 59 ‘°y“ 
I he nucleus in these forms is always pale, and across it can be 
se en the striations of the body. The blepharoplast is i'2// long, 
rather narrow, and almost hidden by the large granules, which are 
about i'5/i in diameter. 
IV- — A trypanosome resembling T. karyozeakton x is present, but 
the characteristic chain between blepharoplast and nucleus can never 
be seen. These trypanosomes may be classified, according to the size, 
as large, medium, and small, or, better, narrow. 
The large form (Plate XXVIII, fig. 42) is sometimes coiled more or 
le^s tightly (Plate XXVIII, figs. 43 and 44). This phenomenon was 
abo observed in fresh preparations. The further development of these 
