6 FOOT. RVOL. XII 
Fig. 3 represents a still larger oocyte, with a corresponding 
growth of the archoplasm. 
Figs, 4 and 5 represent two types of the distribution of the 
archoplasm found in the older oocytes. In some cases the 
greater part of the substance is aggregated at the periphery 
of the egg; in others the distribution is more nearly equal 
throughout the cytoplasm.! 
Fig. 6 shows a new phase of the archoplasm.2, Here we 
not only find it distributed through the cytoplasm, but at 
points where the membrane of the germinal vesicle has dis- 
appeared we see it entering into the germinal vesicle itself. 
The presence of the archoplasm in the germinal vesicle 
reminds one of Korschelt’s* and Jordan’s* observations on 
the entrance of the “yolk-nucleus”’ into the germinal vesicle, 
and Lavdowsky’s® claim to have seen yolk elements within the 
nucleus. It also recalls the observations of some of the inves- 
tigators who claim to have seen not only the nucleoli, but 
also chromatin, /eaving the germinal vesicle; for this sub- 
stance in earlier stages has been positively asserted to be 
chromatin by several authors. In Fig. 6 an attempt has been 
made to represent the less transparent appearance of the 
Ovarian eggs at the free end of the ovary. A comparison 
of this with the foregoing figures will show what I have 
attempted to indicate. With very few exceptions (dependent 
upon the fixative) this same lack of transparency is shown in 
all later stages ; z.e. in eggs taken from the cocoon. 
1 Fig. 4 recalls the Diffuse Dotterkern of Stuhlmann: “Die Reifung des 
Arthropodeneies nach Beobachtungen an Insekten, Spinnen, Myriopoden und 
Peripatus.” Ber. d. Naturf. Ges. z. Freiburg i. Br., Bd. 1, 1886. Cf His Fig. 
137) elatenvildile 
2 The lithographer has not sufficiently blended the three masses of archo- 
plasm at the upper left side of the figure. In the original sketch, the masses 
are more granular in appearance and are connected by less dense areas of the 
same substance. 
3 Eugen Korschelt, “ Beitrage zur Morphologie und Physiologie des Zellkernes.” 
Zod. Jahrb., Ba. IV, Hft. 1, 1889. 
4 Edwin O. Jordan, “The Habits and Development of the Newt.” JOURNAL 
OF MorPHOLOGY, vol. VIII, 1893. 
° M. Lavdowsky, “ Von der Entstehung der chromatischen und achromatischen 
Substanzen in den tierischen und pflanzlichen Zellen.’ Anatomische Hefte: 
Merkel und Bonnet’s Anat. und Entwicklungse., Rd. IV, Hft. 13, 1804. 
