36 THE MENDEL JOURNAL 



other words, it first occurred as a " sfort " or " muta- 

 tion," and in each succeeding generation some of the 

 offspring have exhibited the deformity. 



The chart shows 174 individuals, of whom 107 

 were ahve in 1907 when the chart was constructed. 

 The last four generations are complete so far as 

 numbers and sex are concerned. The four members 

 enclosed in squares in the fifth generation all died in 

 infancy, and whether they were affected with the 

 abnormality or not cannot now be ascertained. 



The capital letters indicate the abnormal members, 

 the small letters the normal ones. M and m stand 

 for males, F and f for females. Thus it is seen that 

 the first member (now traceable) who showed the 

 deformity was a woman. 



I could not ascertain whether she had any brothers 

 or sisters. The line passing down to M indicates that 

 this woman had a son, and it is seen that he was 

 abnormal. Nothing further can be ascertained about 

 this second generation. This man had three abnormal 

 sons, and a normal one, in addition to nine other 

 children whose sex and type are now unknown. One 

 of these males of this third generation had four sons, 

 three of whom were affected — one normal daughter 

 and one abnormal. The youngest son went to 

 America and settled there. This is interesting from 

 the fact that a family showing an apparently identical 

 peculiarity has been described by an American 

 observer (Mr. Farabee), and it is possible that they 

 have descended from this member of the English 

 family, but this point is not yet settled. 



