496 Proceedings of the Royal Physical Society. 



Environmental Influence in relation to Heredity. 

 Some recent works bearing on this subject (223-246). 



223. Bambeke^ C. van. Pourquoi nous ressemblons a nos parents. 

 Bull. Acad. roy. Belg., T. x. (1885), No. 12. 



221. Barfurth, D. Biologie der Forellen. Arch. mikr. Anat., 

 xxvii., pp. 128-178, 2 pis. 



Influence of hindered spawning (from nature of surroundings) 

 not confined to modifying ovary, hut the elements after- 

 wards produced result in degenerate trouts. 



225. Berthold, G. Studien iiber Protoplasma-mechanik. Leip- 



zig, 1886, p. 332, 7 pis. 



The connection hetween generations is eff'ected by the chemi- 

 cal continuity of the constituent substances, and by the 

 definite morphological composition of the reproductive 

 elements. 



226. Brooks, W. K. The Law of Heredity. Baltimore, 1883. 



The relation between change of environment and throwing 

 off of gemmules. 



227. Detmer, W. Zum Problem der Yererbung. Archiv f. d. 



ges. Physiol. (Pfliiger), xli., 5, 6 (1887), pp. 203-215. 



Against Weismann. 



228. Eimer, G. H. T. Die Enstehung der Arten auf Grund von 



Vererben erworbener Eigenschaften nach den Gesetzen 

 organischen Wachsens. Theil i., p. 461. Jena, 



1887. 



229. Geddes, p. Theory of Growth, Reproduction, Sex, and 



Heredity. Proc. Boy. Soc. Edin., pp. 911-931, 1886. 



230. Hallez, p. Pourquoi nous ressemblons a nos parents. 



Mem. Soc. Sc. Lille, T. xv., 1886. 



231. Hensen, W. Die Grundlage der Yererbung nach dem 



gegenwartigen Wissenkreis. Landwii'thschaftl. Jahrb., 

 xiv., 1885. 



232. His, W. Unsere Korperform und das physiologische Prob- 



lem ihrer Enstehung, 1874. 



Characters acquired in the individual life are not transmitted. 



