218 GENERAL EMBRYOLOGY 



LILLIE, F. R., Studies of fertilization in Nereis. III. The morphology 

 of the normal fertilization of Nereis. IV. The fertilizing power 

 of portions of the spermatozoon. Jour. Exp. Zool. 12. 1912. 

 (See also ref. Ch. III.) 



LOEB, J., Ueber die Befruchtung von Seeigeleiern durch Seesternsamen. 

 2 Mitth. Arch, gesamte Physiol. 99. 1903. Artificial Mem- 

 brane-formation and Chemical Fertilization in the Starfish 

 (Asterina). Also, On an Improved Method of Artificial Partheno- 

 genesis. Univ. Calif. Publ. Physiol. 2. 1905. Die Chemische 

 Entwicklungserregung des thierischen Eies. Berlin. 1909. 



MARK, E. L., Maturation, Fecundation, and Segmentation of Limax 

 campestris. Bull. Mus. Comp. Zool. Cambridge. 6. 1881. 



MASING, E., Ueber das Verhalten Nucleinsaure bei der Seeigeleies. 

 Zeit. Physiol. (Hoppe-Seyler.) 67. 1910. See Arch. Entw.- 

 Mech. 31. 1911. 



MAUPAS, E., Le rejeunissement karyogamique chez les Cilies. Arch. 

 Zool. Exp. (II), 7. 1889. 



MINOT, C. S., The Problem of Age, Growth, and Death. New York. 

 1907. 



MORSE, M. W., Maturing Reagents and those inducing Segmentation in 

 Artificial Parthenogenesis. Science. (Proc. Amer. Soc. Zoologists.) 

 33. 1911. 



NEMEC, B., Das Problem der Bef ruchtungsvorgange' und andere cyto- 

 logische Frage. Berlin. 1910. 



PHILLIPS, E. F., A Review of Parthenogenesis. Proc. Am. Phil. Soc. 

 42. 1903. 



RtJCKERT, J., Ueber Polyspermie. Anat. Anz. 37. 1910. 



SCHAUDINN, F., Ueber die Copulation von Actinophrys sol. Sitz.-Ber. 

 Acad. Wiss. Berlin. 6. 1896. 



SILVESTRI, F., Ricerche sulle fecondazione di un animale a spermatozoi 

 immobili. Rich. Lab. Anat. Roma e altri Lab. Biol. 6. 1902.- 



SOBOTTA, J., Die Reifung und Befruchtung des Eis von Amphioxus 

 lanceolatus. Arch. mikr. Anat. 50. 1897. 



TENNENT, D. H., and HOGUE, M. J., Studies on the Development of 

 the Starfish Egg. Jour. Exp. Zool. 3. 1906. 



WEISMANN, A., (See ref. Ch. I.) 



WILSON, E. B., (See ref. Ch. II.) 



WOODRUFF, L. L., The Life Cycle of Paramecium when subjected to a 

 Varied Environment. Amer. Nat. 42. 1908. Two Thousand 

 Generations of Paramaecium. Arch. Protist. 21. 1911. A Sum- 

 mary of the Results of certain Physiological Studies on a Pedigreed 

 Race of ParanuEcium. Biochem. Bull. 1. 1912. 



YATSU, N., The Formation of Centrosomes in Enucleated Egg-Frag- 

 ments. Jour. Exp. Zool. 2. 1905. 



