SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. /2, NO- 10, PL. 



5*= 



wmw 



51 



Fig. 48. Tangential section of the infra-spinous fossa of a human scapula, 

 showing the circulation. 



49. Tangential section of the supra-spinous fossa of the same bone, show- 



ing the circulation. 



50. Cross section of the Qth rib of an adult wliite male, showing the 



structure. 



51. Tangential section of the same bone, inner wall, showing the circula- 



tion. 



