376 



ABRAM T, KERR 



Scott, Sidney 1906 A record of the decussation of the brachial plexus. Jour. 



Anat. and Physiol., vol. 40, pp. 412-415. 

 ViLLAR, F. 1888 Quelques recherches sur les Anastomoses des nerfs du membre 



superieur. Bull. Soc. Anat. de Paris, pp. 607-615. 

 W.^LSH, J. F. 1877 The anatomy of the brachial plexus. Am. Jour. Med. Sci. 



N. S. 74, pp. 387-399. 

 WiCHMANN, Ralf 1900 Die Riickenmarksnerven und ihre Segmentbeziige. 



Berlin. 



TiBLE 1 



Showing the distribution of 175 brachial plexuses as to sex, color and side of the body 



White 



Colored 



Right 



Left 



_., /Right. 

 ^^^^*^ \Left .. 



Colored if'f' 

 l^Left. . 



Total 



Num- 

 ber 



65 

 49 

 56 

 58 

 33 

 32 

 23 

 26 



114 



Per cent 



37.14 

 28.00 

 32.00 

 33.14 



18.85 

 18.28 

 13.14 

 14.85 



65.14 



Num- 

 ber 



20 

 41 

 31 

 30 

 9 

 11 

 22 

 19 



61 



Per cent 



11.42 

 23.42 

 17.71 

 17.14 

 5.14 

 6.28 

 12.57 

 10.85 



34.85 



MALE AND FEMALE 



Num- 

 ber 



85 

 90 

 87 

 88 

 42 

 43 

 45 

 45 



175 



Per cent 



48.57 

 51.42 

 49.71 

 50.28 

 24.00 

 24.57 

 25.71 

 25.71 



100.00 



TABLE 2 



Showing the distribution as to sex, color, and side of the body of the 110 brachial 



plexuses of Group 1 



White 



Colored 



Right 



Left. 



Colored {^^^\ 

 Total 



Num- 

 ber 



41 

 29 



34 

 36 

 20 

 21 

 14 

 15 



70 



Per cent 



37.27 

 26.36 

 30.90 

 32.72 

 18.18 

 19.09 

 12.72 

 13.63 



63.63 



Num- 

 ber 



15 

 25 

 20 

 20 

 6 

 9 

 14 

 11 



40 



Per cent 



13.63 

 22.72 

 18.18 

 18.18 

 5.45 

 8.18 

 12.72 

 10.00 



36.36 



M,\LE AND FEM.\LE 



Num- 

 ber 



56 

 54 

 54 

 56 

 26 

 30 

 28 

 26 



110 



Per cent 



50.90 

 49.09 

 49.09 

 50.90 

 23.63 

 27.27 

 25.45 

 23.63 



100.00 



