APPENDIXES 



Since this book first appeared advances have been 

 made which extend and in some cases modify several 

 statements contained in the previous chapters. Pending 

 an opportunity of re-writing the whole, some of these 

 researches are mentioned very briefly in the following 

 paragraphs. I have arranged them in the order followed 

 in the book, so that they may be read as annotations to 

 the several chapters. 



The work done in the past three years with a bearing 

 on Mendelian Principles has been of vast extent, and 

 the contributions here enumerated are those only which 

 either for extent or for novelty seem especially important. 



Appendix to Chaptei" II. Structtu^al Characters. 



Peas. As to inheritance of Stature and the Time of 

 flowering see Keeble, F. and Pellew, C.,Jour. Gen., i. 1910, 

 p. 47. The following characters were found to be domi- 

 nants, Thick stem. Long internode, Late flowering. 



Potato. Elaborate investigation of numerous characters. 

 Salaman, R. ^.,Jour. Gen., i. 19 10, p. 7. 



Capsella. Several leaf-characters analysed by Shull, 

 G. H., ''Bursa bitrsa-pastoris and Bicrsa Hecgei'i biotypcs 

 and hybrids,'' Publication No. 112 of Carnegie Institution, 



1909. 



Beta. Kajanus {^Zts. f. indnkt. Abstam. u. Verer- 

 bungsleh^e, 191 1, vi. p. 137) describes experiments on the 

 inheritance of sugar-beets and mangels. Besides colours, 

 which were found to be controlled by very numerous factors, 

 some structural characters were investigated, especially the 

 shape of the bulb and the number of leaves. The results 

 were complex and some apparent inconsistencies were met 

 with. 



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