Proceedings of the Association of American Anatomists 509 



on the average, less sunken in the Indian than in the white, on oi 

 almost on the level with the surrounding parts in the negro, bulging 

 more or less beyond these in the primates; the styloid is, in the majority 

 of cases, small in the negro and often small to rudimentary in the In- 

 dian. Where the styloid is rudimentary, the vaginal process seems to 

 play frequently a compensatory part. In whites all the mentioned 

 stages of the parts may be observed at different periods of life. Brain 

 development accounts for the differences in the size of the middle lacer- 

 ated foramen and the relative position of the petrous portions. 



CONTEIBUTION TO THE ANATOMY OF THE SCAPULA. By Ales 

 Hrdlicka. 



Eead by Title. 



A NOTE ON THE SUPEACONDYLAE PEOCESS. By Egbert J. Terry. 



In looking over specimens of this variation, it was observed that the 

 process was more or less compressed laterally and that in most cases 

 the spur arose from a longitudinal ridge on the inner face of the shaft 

 of the humerus in its lower part. 



A number of supracondylar processes at hand vary in extent from a 

 compressed prong 12 mm. long to a small, sharp projection in the 

 middle of a prominent ridge. 



A ridge or line was found in a large number of humeri, in the place 

 where the supracondylar process occurs. It extends downward from, or 

 near to, the principal medullary foramen. 



In the literature, Struthers has referred to the line as appearing in 

 most, if not all, human arm bones {Lancet, 1863, p. 87). A specimen of 

 supracondylar process with extra head of biceps and high division of the 

 brachial artery was exhibited. The supernumerary origin of the biceps 

 is below the insertion of the coraco-brachialis. 



A SKELETON WITH EUDIMENTAEY CLAVICLES. DIVIDED PAEIETAL 

 BONES AND OTHEE ANOMALOUS CONDITIONS. By Egbert J. 

 Terry. 



A description of the specimen was published in the Journal of Anat- 

 omy and Physiology, Vol. 33. 



A considerable number of these cases have been reported since 

 Meckel called attention to the anomaly in 1760 {Mem. de Paris, 1760). 

 Whenever a careful physical examination has been made, cranial defects 

 have been found present with the abnormal condition of the clavicles. 



