26 Gen . Sub. 
GENERAL SUBJECTS. 
0 Laulani6, — . Sur l’origine commune et le role variable de l’epithe* 
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Leydig, F. Beitriige zur Kenntniss des thierischen Eies im unbefruch- 
teten Zustande. Zool. Jahrb. iii, 2, pp. 287-432, 7 pis. 
i. Description of ova of worms, Crustaceans, spiders, myriopods, 
insects, fishes, amphibians, mammals. II. The origin of the ovum ; the 
nucleus ; the yolk ; the vitelline membrane ; the membrana granulosa ; 
the follicular cells : the reproductive and somatic cells. 
Liebermann, — . Embryochemische Untersuchungen. Arch. ges. 
Phys. xliii, pp. 71-152, 3 figs. 
(1) Some constituents of hens’ eggs; (2) metabolism of egg during 
hatching ; (3) chemistry of embryo. 
LOwentiial, N. Notiz fiber die Protoplasmastruktur der Kornzellen 
des Eierstockes. Anat. Anz. iii, pp. 65-68, 4 figs. 
. Zur Kenutniss des Keimfleckes im Urei einiger Safiger. T. c. 
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McICendrick, J. G. [See Cell.] 
Nagel, W. Das meuschliche Ei. Arch. mikr. Anat. xxxi, pp. 342-423, 
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The primordial ovum and primary follicle, "the subsequent growth of 
these, and the conditions of maturity. In the mature ovum : (1) the 
epithelium ; (2) the zona pellucida ; (3) a perivitelline space ; (4) a 
narrow, clear, cortical zone of the vitellus ; (5) a broader, finely 
granular, protoplasmic zone ; (6) a central deutoplasmic zone ; and (7) 
the germinal vesicle and spot. 
Platner, G. Die erste Eutwicklung befruchteter und partheuogeue- 
tischer Eier von Liparis dispar. Biol. Centralbl. viii, 17, pp. 521-524. 
In the parthenogenetic ova, two polar nuclei were formed, of which the 
first again divided. 
Boux, W. Zur Frage der Axenbestimmung des Embryo im Froschei. 
Op. cit. viii, 13, pp. 399-413. 
Byder, J. A. On the resemblance of the primitive Foraminifera and 
Ovarian Ova. P. Ac. Philad. 1888, p. 73. 
Strasburger, E. [See Cell.] 
°Yejdowsky, F. Entwickelungsgeschichtliche Untersuchungen. Heft I. 
Reifung, Befruchtuug, und die ersten Furchungsvorgange des 
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. Also in Bohemian. Preisgekronte Schriften. J. Ber. k. Bohm. 
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Virchow, H. Ueber die physikalisch zu erklarenden Erscheinungen, 
welche am Dotter des Hfinnereies bei der mikroskopischen Unter- 
Buchung sichtbar werden. SB. Preuss. Akad. 1888, xxxvii, pp. 
979-981. 
