196 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL.83 



longed evidently to either a weak male or more probably to a female. 

 The distal end in the right bone is quite feminine. 



The shafts of the bone dififer in shape from modern humeri in 

 that both the mesial and the lateral surfaces are distinctly convex, 

 much alike, and converging forward to a relatively high ridge for the 

 latissimus dorsi muscle, from which a ridge for the pectoralis major 

 diverges upwards from about the site of the deltoid tuberosity, which 

 is undeveloped. The musculo-spiral groove is hardly noticeable. The 

 posterior surface of the shaft, especially above the middle, is narrow, 

 and above the middle becomes also somewhat unevenly convex. The 

 lower fourth of the shaft is relatively decidedly higher (antero-poste- 

 riorly) than it is in modern bones of similar dimensions. There is no 

 perforation of the fossa (right), and no trace of a supracondyloid 

 process. The lower articular part of the right bone resembles in nearly 

 all essentials that of a female humerus of today, the only exceptions 

 being that the trochlea is relatively slightly narrower from side to 

 side, that its cross section (lateral) is but very slightly convex rather 

 than markedly so as in modern bones, and that its mesial border is 

 rather high. The depression above the capitulum is deeper than is 

 usual in many, but not all, modern bones ; and the olecranon fossa is 

 both markedly deeper and more spacious than it is in modern humeri 

 of similar size. 



cm. 



Measurements r. I. 



At middle of shaft, antero-post. diam 2.2 2.1 



Lateral diam 1-4 ^-4 



Olecranon fossa : 



Height max 20.0 mm. 



Breadth max 28.0 mm. 



Breadth of articular facet : 



(in middle of its anterior aspect) 38.0 mm. 



The radii. — The two radii present belong more likely, it seems, to 

 this skeleton than to No. 2. They were of moderate length, and of 

 good feminine (or weak masculine) strength. The head of the left 

 bone is decidedly feminine. Its maximum diameter is only 19 mm. 

 The neck is narrow. The tuberosity and the shaft resemble those in 

 modern bones, but the shaft shows a very marked curvature outward, 

 just as in the Neanderthal radius, which is not equalled under normal 

 conditions among modern bones. 



The ulmc. — The head of the left ulna that clearly belongs to this 

 skeleton is of feminine proportions, and so far as it is preserved it 

 falls in every respect within the range of variation of the modern 

 bones. 



