68 EGG AND SPERM SUBSTANCES 



matozoa and eggs with metal-chelating agents (amino acids, ver- 

 sene, DEDTC, oxine, cupron). Biol. Bull, 104, 224-39. 



Tyler, A. 1955. Gameto genesis, fertilization and parthenogenesis. Sec. 

 V, Chap. 1 in Analysis of Development, B. H. Willier, P. A. Weiss, 

 V. Hamburger, editors. W. B. Saunders Co., Philadelphia, Pa. 



Tyler, A. 1956. Physico-chemical properties of the fertilizins of the 

 sea-urchin, Arhacia punctiilata and the sand-dollar Echinarachnius 

 parma. Exptl Cell Research, 10, 377-86. 



Tyler, A., A. Burbank, and J. S. Tyler. 1954a. Sedimentation constants, 

 viscosity, and diffusion of the fertilizins of Arhacia and Echina- 

 rachnius. Biol. Bull., 107, 303 (abstract). 



Tyler, A., A. Burbank, J. S. Tyler. 1954b. The electrophoretic mobili- 

 ties of the fertilizins of Arhacia and Echinarachnius. Biol. Bull., 107, 

 304 (abstract). 



Tyler, A., and S. W. Fox. 1939. Sperm agglutination in the keyhole 

 limpet and the sea-urchin. Science, 90, 516-17. 



Tyler, A., and S. W. Fox. 1940. Evidence for the protein nature of the 

 sperm agglutinins of the keyhole limpet and the sea-urchin. Biol. 

 Bull, 79, 153-65. 



Tyler, A., and C. B. Metz. 1945. Natural heteroagglutinins in the 

 serum of the spiny lobster, Panulirus interruptus. I. Taxonomic 

 range of activity, electrophoretic and immunizing properties. /. 

 Exptl Zool, 100, 387-406. 



Tyler, A., and C. B. Metz. 1955. Effects of fertilizin-treatment of 

 sperm and trypsin-treatment of eggs on homologous and cross- 

 fertilization in sea-urchins. Pubhl staz. zool Napoli, 27, 128-45. 



Tyler, A., A. Monroy, and C. B. Metz. 1956. Fertilization of fertilized 

 sea urchin eggs. Biol Bull, 110, 184-95. 



Tyler, A., and K. O'Melveny. 1941. The role of antifertilizin in the 

 fertilization of sea-urchin eggs. Biol. Bull, 81, 364-74. 



Tyler, A., and Lord Rothschild. 1951. Metabolism of sea urchin sper- 

 matozoa and induced anaerobic motility in solutions of amino acids. 

 Proc. Soc. Exptl Biol Med., 76, 52-58. 



Vasseur, E. 1947. The sulfuric acid content of the egg coat of the sea 

 urchin Strongylocentrotus droehachiensis Mull. Arkiv Kemi, 25B, 

 1-2. 



Vasseur, E. 1948. Chemical studies on the jelly coat of the sea-urchin 

 egg. Acta Chem. Scand., 2, 900-13. 



Vasseur, E. 1949a. Effect of calcium ions on the agglutination in Stron- 

 gylocentrotus droehachiensis Mull. Arkiv Kemi, 1, 105-16. 



