36 A NEW TYPE OF BRACHYPHALANGY IN MAN. 



Ninth Family or V Generation. 



The normal 115.7 9 L. H. has by her marriage with the normal 

 J. H. one son, 1157.1 cf. 



1157.1 cf R. H. G. H. (b. May 14, 1911). Photographs and radio- 

 graphs of his hands show that he is normal. Lengths of II 2 and IV 2 

 on both hands are 14 and 17 mm. respectively. 



Tenth Family of V Generation. 



The B !-type brachyphalangous 115.8 cf I. H. has by his marriage 

 with the normal O. M. G. K. one son, 1158.1 cf . 



1158.1 cf H. L. H. (b. July 19, 1914). Photographs and radiographs 

 of his hands show that he is normal. Lengths of II 2 and IV 2 are 13 

 and 17 mm., respectively, on both hands. 



Line 1, VI Generation. 



The sixth generation of Une 1 so far includes 4 families, 2 of them 

 belonging to the descendants of the normal 11.4 9 L. A. H. H. (p.26) and 

 2 to that of the B!-type brachyphalangous 11.5 cf C. A. B. H. (p. 26). 



First Family of VI Generation. 



The normal 1146.1 9 G. H., by her marriage with the normal C. C, 

 has 2 children, 11461.1 c? P. C. (b. Aug. 17, 1913) and 11461.2 cf E. C. 

 (b. June 7, 1916). 



Second Family of VI Generation. 



The normal 1147.4 9 K. L. B., by her marriage with the normal 

 J. J., has 2 children, 11474.1 and 11474.2. 



11474.1 cf K. L. J. (b. May 29, 1911). Photographs and radiographs 

 of his hands were provided as a test. They prove that he is quite normal. 



Lengths of II 2 and IV 2 are 13 and 16 mm., respectively, on the 

 right hand, 14 and 16 mm. on the left hand. 



11474.2 9 R. B. J. (b. Sept. 27, 1913). 



The examination proves that all these four individuals, descendants 

 of 11.4 9 L. A. H. H., are perfectly normal. In one case radiographs 

 and photographs are given as a control. 



We have now followed the total descendants of this individual, 

 11.4 9, through three generations. Though she was a daughter of 

 the brachyphalangous 1.1 9, her hands were normal (see p. 26). In 

 accordance with the expectation all the 28 individuals descended from 

 her have been found to be normal, free from the factor for brachy- 

 phalangy. 



Third Family of VI Generation. 



The B-type brachyphalangous 2251.2 9 S. G., by her marriage 

 with the normal O. S. R., has a son, 11512.1 cf. >:% ,1 



11512.1 cf O. R. (b. Apr. 5, 1898). A photograph of his hands is 

 given in fig. 18. It shows a typical case of the B !-type brachypha- 



