THE SPERMATOPHORE IN ARENICOLA 1041 
BIBLIOGRAPHY 
ALLEN, Cuas. E. 1905 Die Keimung der Zygote bei Coleochaete. Ber. deutsch. 
bot. Gesells., Bd. 33: p. 286. 
DeBarry, A. 1878 Ueber apogame Farne und die Erscheinung der Apogamie 
im Allgemeinen. Bot. Zeit., Bd. 36: pp. 449-487. 
Berarp, J. 1902 Heredity and the epicycle of the germ-cells. Biol. Centralbl., 
vol. 22: pp. 321-328, 353-360, 398-408. 
Bearp, J. anD Murray, J. A. 1895 On the phenomena of reproduction in ani- 
mals and plants. Ann. of Bot., vol. 9: pp. 441-468. 
Birscut1, O. 1876 Studien tiber der ersten Entwicklungsvorginge der Hizelle, 
der Zelltheilung und die Conjugation der Infusorien. Abh.d.Senckenb. 
naturf. Gesell. Fr. a. M., Bd. 10: pp. 213-452. 
Ca.xins, Gary N. 1895 The spermatogenesis of Lumbricus. Jour. Morph., 
vol. 11, no. 2: pp. 271-302. 
CHAMBERLAIN, C. J. 1905 Alternation of generations in animals from a botanic 
standpoint. Bot. Gaz., vol 39: pp. 187-144. 
1910 Nuclear phenomena of sexual reproduction in Gymnosperms. 
Am. Nat., vol. 44: pp. 595-603. 
Cuitp, Cuas. M. 1900 The early development of Arenicola and Sternapsis. 
Arch. f. Entw. der Org., Bd. 9: pp. 587-717. 
CouuterR, Joun M. 1908 Megaspores and embryo sacs. Bot. Gaz., vol. 45: 
pp. 361-366. 
Coutter, Barnes, Cowies 1910 Text book of botany. Chicago. 
DanceEarpD, P. A. 1898 Sur les Chlamydomonadinées. C. R. Ac. Sci., Paris, 
Tome 127: p. 736. 
Davis, B. M. 1905 On the plant cell, vi and viz. Am. Nat.. vol. 39: pp. 449- 
500 and 555-600. 
1909 Origin of the Archegoniates. Am. Nat., vol. 43: pp. 107-111. 
Dosett, C. C. 1907 Physiological degeneration in Opalina. Q. J. Micr. Sci., 
vol. 51: pp. 633-646. 
1908 The structure and life-history of Copromonas subtilis. Q. J. 
Micr. Sci., vol. 52: pp. 75-120. 
1909 Chromidia and the binuclearity hypothesis. Q. J. Micr. Sci., 
vol. 53: pp. 279-326. 
Downline, E. R. 1905 The spermatogenesis of Hydra. Zool. Jahrb., Abt. f. 
Anat. u. Ont., Bd. 21: pp. 379-426. 
1909 The connections of the gonadial blood vessels and the form of the 
nephridia in the Arenicolidae. Biol. Bul., vol. 16: pp. 246-258. 
