1917 Riddle J on Chinook Salmon 329 



42. On the nuclear cleavage-figures developed during the seg- 

 mentation of the germinal disk of the egg of the salmon. Bull. U. 

 S. Fish. Comm. Vol. 1. 1881. 



43. Rutter, C. Natural history of the quinnat salmon. Bull. U. S. Fish. 



Comm. Vol. 22. 1902. 



44. Sumner, F. B. A study of early fish development. Archiv fiir Ent- 



wickelungsmechanik der Organismen. Vol. 17. 1903. 



45. Kuppfer's vesicle and its relation to gastrulation and con- 

 crescence. Mem. X. Y. Acad. Sci. Vol. 3. 1900. 



46. Shelford, V. E., and Powers, E. B. An experimental study of the 



movements of herring and other marine fishes. Biol. Bull. Vol. 28. 

 1915. 



47. Stockard, C. R. An experimental analysis of the origin of blood and 



vascular epithelium. Amer. Journ. Anat. Vol. 18. 1915. 



48. White, G. M. The behavior of brook trout embryos from the time 



of hatching to the absorption of the yolk sac. Journ. Animal Behav. 

 Vol. 5. 1911. 



49. Wilson, H. V. The embryology of the sea bass (Serranus atrius). 



Bull. U. S. Fish. Comm. Vol. 9. 1889. 



