[227] Dana and Silliman’s Amer. Journ., 3rd series, i. p. 89. Annals Nat. Hist. vii. p. 246.
[228] Proc. Zoo. Soc. 1870, p. 160.
[229] Compt. Rend., vol. lx. p. 765 (1865).
[230] Nouvelles Archives du Muséum d’Histoire Nat. Paris, 1866, vol. ii. p. 268.
[231] Proc. Boston Soc., vol. xii. p. 97; Silliman’s Amer. Journ., vol. xlvi. p. 364; reference given in “Troschel’s Jahresbericht” for 1868, p. 37.
[232] Proc. Boston Soc., vol. xii. p. 97; Silliman’s Amer. Journ., vol. xlvi. p. 364. I have not been able to get a copy of this paper, and quote from a reference in “Troschel’s Jahresbericht.” See preceding note.
[233] Dana and Silliman’s Amer. Journ. See note 3.
[234] Proc. Acad. Philadelph. xix. 1867, pp. 166–209.
[235] Mém. Acad. Petersb. vol. xvi.
[236] [Eng. ed. Seidlitz is an exception, since in his work on Parthenogenesis (Leipzig, 1872, p. 13) he states that “In the Axolotl, Pædogenesis, which is not in this case... monogamous, but sexual, and indeed gynækogenetic, has already become so far constant that it has perhaps entirely superseded the orthogenetic reproduction.”]