File:Long1911 plate04.jpg

Plate 4 Second Maturation Spindle

(Figures 190-236, Inclusive).

Figs. 17a, 176. The two sections show a spindle in a more advanced stage of division than that in figs. 15a, 156. The abstriction of the polar cell has begun in the vicinity of the "Zwischenkorperchen." Ovarian egg. X (2500)2000.

Fig. 18. Polar cell recently abstricted. Ovarian egg. X (2500)2000.

Figs. 19a, 196. Two sections of an oviducal egg showing polar cell and egg nearly severed from each other. Prophase of second spindle. X(2 5oo) 2000.

Figs. 20, 21. Polar views of chromosomes of second spindle. Fig. 20 from an oviducal egg. Fig. 2 1 from an egg in periovarial space. X (2500)2000.

Fig. 22. Side view of second spindle. Large first polar cell on nearly opposite side of egg. Oviducal egg. X (1200)960.

Figs. 23a, 236. Spindle in paratangential position, cut obliquely into two sections. There are 19 chromosomes. Circumpolar bodies not stained deeply. First polar cell very small and near the spindle. Oviducal egg. X (2500)2000.

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