297 
with the nucleus. This specimen is unique; somewhat similar 
granules once occurred (fig. 59) in connection with the blepharoplast. 
It is possible that the division of the nucleus may be by mitosis. 
Some half-dozen forms like figs. 54, 56, 59 were seen. Unfortunately, 
it was never possible to distinguish the individual spindle fibres or to 
count the individual chromosomes. Some spindles, however, had a 
distinctly fibrillar appearance, and the chromatin was usually very 
distinctly granular at this stage ; in one specimen (fie- 56) the granules 
could almost be counted — there seemed to be from seven to nine. 
The further development of this process was not observed. 
The type of parasite in fig. 68 is probably an early stage of this 
second process. The nuclear concentration in the chlamydoplasm is 
indistinct and circular. The blepharoplast is very well marked ; its 
thread-connected granules are distinct, and not infrequently a 
chromatophilic granule occurs well outside the blepharoplast, but 
still connected to it by a well-defined reddish thread (fig. 68). (In 
one such parasite the blepharoplast had divided into two equal parts 
connected by a thread.) This apparent extrusion of granules from the 
blepharoplast occurs, but less frequently, at other stages (figs. 49. 5 °)- 
Figs. 51 and 60 are larger parasites apparently undergoing a 
similar process. In fig. 57 the blepharoplast seems to be extruding two 
granules, while the nucleus is commencing to divide. In fig. 60 the 
nucleus, now almost outside the chlamydoplasm, is almost completely 
divided, while the granules in the blepharoplast have become much 
more distinct. Fig. 58 is probably a stage in this process. It is 
suggested that this second process is possibly concerned with the 
prostages of mikrogamete formation. 
4 trypanosome. 
Six trypanosomes which cannot be identified easily with any 
Parasite already described were seen in the slides containing the 
leucocytozoon. All were of approximately the same type. The usual 
Measurements were about I ,* 3*7/4; II, 10*5/1 ; III, 1*8/4; IV, 21*4/4; 
*The measurements of trypanosomes in this communication were ?nade 
Wording to the formula described by us on page 88 of Memoir XXI of this bchool. 
I— Posterior extremity of the parasite to centre of the blepharoplast. 
II— From the centre of the blepharoplast to the posterior border ot the 
nucleus. 
HI— From the posterior to the anterior border of the nucleus. 
IV—Anterior border of nucleus to posterior extremity of the body 01 me 
parasite. 
V—Length of free flagellum. 
VI— Breadth of body at its widest part. 
1 ‘ le total length of the parasite is also given as a measurement. 
