170 ADOLF H. SCHULTZ 



when briefly summarized, the possibiUties of variation, the more 

 constant position of the deltoid insertion compared with the 

 pectoraUs major, the equahty of the positions of the two muscle 

 insertions in whites and negroes, the relatively higher attach- 

 ment of the pectoralis major in females, and lastly the surpris- 

 ingly common asymmetry of the insertion positions. The author 

 has noticed that asymmetries of position of the insertions oc- 

 curred as early as birth, although they are not as frequent nor 

 as marked in the newborn as in adults. 



In conclusion, the individual relative measurements and hu- 

 merus lengths which form the basis of this paper are tabulated, 

 and are arranged according to increasing lengths of the right 

 humerus. 



