The works of Francis Maitland Balfour, Volume 1 (of 4)

by Francis M. Balfour

[389] Loc. cit.

[390] Loc. cit.

[391] Das Ei bei Knochenfischen.

[392] “Ovum” in Todd's Encyclopædia, fig. 69.

[393] The peculiar oval, or at times slightly rectangular and striated yolk spherules of Elasmobranchii are mentioned by Leydig and Gegenbaur (Pl. 11, fig. 20), and myself, Preliminary Account of Development of Elasmobranch Fishes, and by Filippi and His in Osseous Fishes.

[394] “Untersuchung über die Eier d. Reptilien,” Archiv f. mikros. Anat. Vol. VIII.

[395] Vide Allen Thomson, article “Ovum,” Todd's Encyclopædia, p. 95.

[396] Loc. cit.

[397] Loc. cit.

[398] Compare, with reference to several points, the germinal vesicle at this stage with the germinal vesicle of the frog's ovum figured by O. Hertwig, Morphologisches Jahrbuch, Vol. III. pl. 4, fig. 1.