CONTENTS. ix 



No. of the 

 Tables. 



Subjects of the Tables. page 



13. Ditto from the Special data . . 210 



14. Deviations of Individual brothers from their common Mid- 



Fraternal Stature ........ 211 



15. Frequency of the different Eye Colours in 4 successive Gene- 



rations ................ 212 



ft 



16. The Descent of Hazel-Eyed families 213 



17. Calculated contributions from Parents and from Grandparents, 



according as they are Light, Hazel, or Dark eyed . . . . 213 



18. Examples of the application of Table 17 214 



19. Observed and calculated Eye Colours in 16 groups of families 215 



20. Ditto in 78 separate families 216 



21. Amounts of error in the various calculations of anticipated 



Eye Colour 218 



22. Inheritance of the Artistic Faculty 218 



APPENDICES. 



A. Memoirs and Books on Heredity by the Author ....... 219 



B. Problems by J. D. Hamilton Dickson 221 



C. Experiments on Sweet Peas, bearing on the law of Begression . . 225 



D. Good and bad Temper in English Families 226 



E. The Geometric Mean in Vital and Social Statistics 238 



F. Probable extinction of Families, 214 ; Discussion of the Problem 



by the Eev. H. W. Watson, D.Sc 241 



G. Orderly arrangement of Hereditary Data . 248 



Index 257 



