322 THE INDUCTIONS OF BIOLOGY. 



and five sons, all normal except one of the sons, James J , 



now set. 17, who had six fingers on each hand. . . . 



" In this branch of the descendants of Esther, we see it 

 passing over two generations and reappearing in one member 

 of the third generation, and now on both hands. 



" (3.) Charles L , the only child of Esther who had 



digital variety, had six fingers on each hand. He had threa 

 sons, James, Thomas, and John, all of whom were born with 

 six fingers on each hand, while John has also a sixth toe on 

 one foot. He had also five other sons and four daughters, all 

 of whom were normal. 



" (a.) Of the normal children of this, the third generation, 

 the five sons had twelve sons and twelve daughters, and the 

 four daughters have had four sons and four daughters, being 

 the fourth generation, all of whom were normal. A fifth 

 generation in this sub-group consists as yet of only two boys 

 and two girls who are also normal. 



" In this sub-branch, we see the variety of the first gener- 

 ation present in the second, passing over the third and fourth, 

 and also the fifth as far as it has yet gone. 



" (6.) James had three sons and two daughters, who are 

 normal. 



" (c.) Thomas had four sons and five daughters, who are 

 normal; and has two grandsons, also normal. 



" In this sub-branch of the descent, we see the variety of 

 the first generation, showing itself in the second and third, 

 and passing over the fourth, and (as far as it yet exists) the 

 fifth generation. 



" (d.) John L (one of the informants) had six fingers, 



the additional finger being attached on the outer side, as in 

 the case of his brothers James and Thomas. All of them 

 had the additional digits removed. John has also a sixth toe 

 on one foot, situated on the outer side. The fifth and sixth 

 toes have a common proximal phalange, and a common integu- 

 ment invests the middle and distal phalanges, each having a 

 separate nail. 



