37 



call in question the importance of natural selection as a factor in 

 evolution. 



In conclusion, it may be pointed out that whether Mendel's con- 

 ceptions are ultimately proved to be completely right or only 

 partially so, there are three things we owe to him which deserve our 

 deepest gratitude. Horticulturists and breeders have, for the first 

 time, had placed in their hands a really scientific working hypothesis 

 which should enable them to obtain some, at least, of the results 

 they want with a certainty and speed far surpassing anything done 

 in the past. To the professed biologist a most promising field of 

 investigation has been opened up — a field in which probably some 

 of the most important work that has ever been undertaken in biology 

 is now in progress. And to all workers in science Mendel has set a 

 most splendid example of patient work with perfectly simple means 

 and materials. It is not often that the results of so much work 

 have been put into so small a compass. Ten years of steady work 

 for a paper of forty-five pages ! 



Bibliography. 



(The following list, although not pretending to be in any way exhaustive, 

 will, it is believed, be found to contain most of the more important works 

 dealing with Mendel's law. Those who want something comprehensive in a 

 condensed form will do well to read Mr. Punnett's little book on ' Mendelism.') 



Bateson, W. — ' Mendel's Principles of Heredity,' 1902 ; Presidential 

 Address, Section D (Zoology), British Association, Cambridge, 1904 (printed 

 in 'Nature,' August 25th, 1904, pp. 406-413). 



Bateson, W., and Punnett, R. C. — " A Suggestion as to the Nature of the 

 ' Walnut ' Comb in Fowls," ' Proceedings Cambridge Philo. Soc.,' vol. xiii, 

 1905, pp. 165-168. 



Bateson, W., and Saunders, E. R. — ' Experimental Studies in the Physi- 

 ology of Heredity.' Reports to the Evolution Committee of -the Royal Society, 

 Report I, 1902. 



Bateson, W., Saunders, E. R., Punnett, R. C, and Hurst, C. C. — Ibid., 

 Report II, 1905. 



Correns, C. — " Gregor Mendel's Regel uber das Verhalten der Nachkom- 

 menschaft der Rassenbastarde," ' Berichted. deutschen Bot. Gesellschaft,' 1900, 

 vol. xviii, pp. 158-168. 



Cuenot, L. — "L'Heredite de la pigmentation chez les souris " (3 me note), 

 ' Archives de Zoologie experimentale et generale,' 4th series, 1904, vol. ii 

 (Notes et Revue), pp. xlv-lvi. 



Darbishire, A. D. — Reports on the Crossing of Japanese Waltzing Mice 

 and Albino Races, ' Biometrika,' vol. ii, Part I, 1902, pp. 101-104; Ibid., 

 Part II, 1903, pp. 165-173; Ibid., Part III, 1903, pp. 282-285; Ibid., vol. iii, 

 Part I, 1904, pp. 1-51 ; "On the Supposed Antagonism of Mendelian to 

 Biometric Theories of Heredity," ' Memoirs and Proc. Manchester Lit. and 

 Phil. Soc.,' February, 1905, vol. xlix. 



Gregory, R. P. — "The Seed Characters of Pisum sativum," ' New Phytolo- 

 gist,' vol. ii, 1903, p. 226. 



Hacker, V. — ' Bastardirung und Geschlechtszellenbildung ' Zoologische 

 Jahrbiicher, Supplement, Band vii, Festschrift A. Weismann, 1904, pp. 

 161-256. 



Heider, K. — ' Vererbung und Chromosomen,' 1906. 



Hurst, C. C. — "Mendel's Principles applied to Wheat Hybrids," 'Journ. 



