490 
L. DONCASTER AND J. GRAY. 
be seen in earlier stages, and the lialves pass to the poles. 
AVe have already pointed out that in some, to which vesicles 
are attached, this division is incomplete and both halves 
])robably ])ass to the same pole. There are occasional indica- 
tions also that sometimes a chromosome which has not 
actnally become vesicuhu', bnt which shows traces of swelling, 
may fail to divide, and pass entire to one pole. For this reason, 
in some eai'ly anaphases, while the two halves of most of the 
chromosomes are easily recognisable, some appear to be 
without mates, and the numbers in the two daughter-groups 
are not always equal. The numbers of chromosomes and 
vesicles found in anaphases of the fii’st division are given in 
the counts recorded in Table II, which are all made by 
drawing. The numbers bracketed together indicate the two 
daughter-groups of one spindle ; the total number of vesicles 
is given by the first figure, that of typical, unshrunk vesicles 
by the figure in round brackets ( ). 
Table II. 
Cliromosomes. 
Vesicles. 
Chromosomes. Vesicles. 
32- 35^ 
33- 35 J 
• (•■>) 
36 1 
30-32 J 
. .5 or 6 
34-30^ 
L 
. 4 
70-75t 
1 
35 ^ 
( • 
30-321 
^ . . 2 
31-34'’ 
L 
•5 
32 J 
33-36. 
1 • 
37 1 
1 7 
20* 1 
1 
. 0 
30-31 J 
30* J 
h ■ 
37 1 
35 J 
64-651- 
5 
* Numbers approximate. 
t Daughter-groups not distinct enough to count separately. 
The exact number of vesicles in anaphase is difficult to 
determine, for while some of them appear to have increased in 
size, others appear to have shrunken and become reduced to 
