i8o PROBLEMS OF FERTILIZATION 



Hertwig, O. and R. 



1887. See references at end of chapter i. 



191 1. Die Radiumkrankheit tierischer Keimzellen; ein Bei- 



trag zur experimenteller Zeugungs- und Vererbungs- 



lehre. Bonn: Friedrich Cohen. 



Just, E. E. 



1915a. "An Experimental Analysis of Fertilization in Pla- 



tynereis megalops," Biol. Bull., XXVUI, 93-114. 

 191 5^. "Initiation of Development in Nereis, ibid., pp. 1-17. 

 1 91 9. See references at end of chapter iv. 



LiLLiE, Frank R. 



191 1. "Studies of Fertilization in Nereis. II. Partial Ferti- 

 lization," Jour, of M or ph., XXII. 



191 2. "Studies of Fertilization in Nereis. IV. The Ferti- 

 lizing Power of Portions of the Spermatozoon," Jour. 

 Exp. Zool., XII, 427-76. 



19 13. See references at end of chapter iv. 



1914. See references at end of chapter iv. 



191 5. See references at end of chapter iv. 



LiLLIE, R. S. 



191 5. "On the Conditions of Activation of Unfertilized 

 Starfish Eggs under the Influence of High Tempera- 

 tures and Fatty Acid Solution," Biol. BiilL, XXVIII, 

 260-303. 



1916. "Increase of Permeability to Water Following Nor- 

 mal and Artificial Activation in Sea-Urchin Eggs," 

 Am. Jour, of Physiol., XL, 249-66. 



191 7. "The Conditions Determining the Rate of Entrance 

 of Water into Fertilized and Unfertilized Arhacia 

 Eggs, and the General Relation of Changes of Per- 

 meability to Activation," ibid., XLIII, 43-57. 



1918. "The Increase of Permeabihty to Water in Ferti- 

 lized Sea-Urchin Eggs and the Influence of Cyanide 

 and Anaesthetics upon this Change," ibid., XLV, 

 406-30. 



LoEB, Jacques. 



1908. "Ueber die osmotischen Eigenschaften und die Ent- 

 stehung der Befruchtungsmembran beim Seeigelei," 

 Arch, fiir Entwickelungsmech., Band 26, pp. 82-88. 



