124 NOTES 



The larvae live on fruits and complete their metamorphosis in about 

 three weeks. Thus one can cultivate many generations of these small 

 flies very easily and quickly. The principal investigation on the eyes 

 will appear soon in the Journal of the Academy of Sciences, Philadelphia. 

 The experiments, however, are still being carried on. Morgan has 

 pubhshed other researches on Drosophila. See Science, XXXII, p. 

 120; XXXII, p. 496; XXXIII, p. S34; XXXIV, p. 384. Also, Journal 

 Exp. Zool., XI, 365-411, 1911. (Heredity in eye color, with figures.) 



54. C. R. Stockard, The development of artificially produced Cyclopean 

 fish — "The magnesium embryo." Journ. Exp. Zool., VI, 285-337, 1908. 



55. A. P. Matthews, Some ways of causing mitosis in unfertilized Arbacia 

 eggs. Amer. Journ. Physiol., 1900, VI, 343-347. 



56. J. Loeb, On the nature of the process of fertilization and the artificial 

 production of normal larvse (Plutei) from the unfertilized egg of the sea- 

 urchin. Amer. Journ. Physiol., 1900, III, 135-138. 



On the artificial production of larvae from the unfertilized eggs of the 

 sea-urchin (Arbacia). Amer. Journ. Physiol., 1900, III, 434-471. 

 (Preliminary communication, Ibid., 135-138.) 



Experiments on artificial parthenogenesis in annelids and the nature 

 of the process of fertilization. Amer. Journ. Physiol., 1.901, IV, 423-459. 

 (Compare also Ibid., 178-184). 



57. E. B. Meigs, Zeitschr. f. allgem. Physiologic, 1908, VIII, 81. Amer. 

 Journ. Physiol., 1908, XXII, 477. Amer. Journ. Physiol., 1912, XXIX, 



317- 



58. C. F. Hodge, Changes in ganglion cells from birth to senile death. Journ. 

 of Physiol., XVII, 129-134. 



59. R. R. Bensley, Studies on the pancreas of the guinea-pig. Amer. Journ. 

 of Anat., XII, 297-388, 1911. 



60. Charles S. Minot, The problem of consciousness in its biological aspects. 

 Presidential address before the American Association for the Advance- 

 ment of Science. 



Science, XVI, 1-12, 1902. German translation in the volume, "Die 

 Methode der Wissenschaft," published by Gustav Fischer, 1913. 



