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

by Francis M. Balfour

[98] Zeitschrift für Wiss. Zoologie, Bd. XXIII. 1873.

[99] Archiv für Micr. Anat. Bd. IX. 1873.

[100] Vide Elements of Embryology, p. 23.

[101] Stricker's Studien, 1869, Pt. I, Pl. II. fig. 4.

[102] Unfortunately Professor Oellacher gives no account of the surface appearance of the germinal discs of which he describes the sections. It is therefore uncertain to what period his sections belong.

[103] Zeitschrift für Wiss. Zool. Bd. XXII. 1872.

[104] Monthly Microscopical Journal, March, 1872.

[105] Loc. cit.

[106] Loc. cit.

[107] Loc. cit.