CYTOPLASMIC INCLUSION OF THE GERM-CELLS. 609 
PLATE 30. 
Fig. 2. — Germinal epithelium showing a cell of the mesoderm (Ancel’s 
layer, A.L.N.) and three germinal nuclei. At X. and Y. are what are 
probably attraction spheres. X 4250, F.W.A. 
Fig. 3. — Oocyte lying in germinal epithelium, mitochondria beginning 
to disperse (M.). X 2000, F.W.A. 
Fig. 4. — Part of germinal epithelium showing yolk cells ( N.C. ), a 
germinal nucleus ( G.E. ), and a spermatogonium (S.P.G.). X 2000, 
F.W.A. 
Fig. 5. — Upper part of an oocyte showing the Nebenkern ( N.K .) and 
the dark mass of mitochondria just before dispersal in cytoplasm (M.). 
x 2000, F.W.A. 
Fig. 6. — Bouquet stage of a supposed oocyte. This cell was deeply 
embedded in yolk like that in PL 29, fig. 1 a or b. x 4250, F.W.A. 
Fig. 7. — Another oocyte showing mitochondria (M.) dispersing and 
yolk being deposited (Y). x 2000, F.W.A. 
Fig. 8. — Represents the two left-hand bodies marked X. in PI. 31, 
fig. 18. x 4250, C. 
PLATE 31. 
Fig. 9. — Oocyte showing dispersal of mitochondria from a centre (c) 
near the nucleus. X 650, C. 
Fig. 10. — Oocyte just after the stage drawn in PI. 30, fig. 6. X 4250, 
F.W.A. 
Figt 11. — Supposed oogonium embedded in yolk cells like that in 
PI. 29, fig. 1 a or b. x 4250, F.W.A. 
Fig. *12. — Oocyte at time of dispersal of flocculent mitochondria, 
showing several bodies ( X.N.K .) supposed to be Nebenkern elements 
X 2000, F.W.A. 
Fig. 13, 14, 15, and 16, several stages in the development of the 
•cytoplasm of the egg. The upper white area in each figure represents 
the nucleus. Fig. 13 was drawn from the same egg as that in fig. 9 ; 
this was about 100 n in length. Egg in fig. 14 was 140 /x. Fig. 15 about 
150 /*. Fig. 16 about 120 /x. X 2000, F.W.A. and Champy. 
Fig. 17. — Male progerminative cell showing development of mito- 
chondria. X 4250, C. 
Fig. 18. — Oocyte near end of growth stage, to show the location of 
the bodies drawn in PI. 30, fig. 8, at a higher power. X 510, C. 
Fig. 19. — Male progerminative cell showing appearance of cloud and 
granules, x 4250, C. 
