SOCIETY OF THE UNIVERSITY OF ABERDEEN. 



29 



European. The mean index for the last lumbar vertebra; is HI -5, an 

 index a good deal lower than usual. 



Sacrum. There is no quite complete specimen of a sacrum. 

 One female sacrum, which only wants the fifth piece, is remarkably 

 flat and ape-like in appearance. The base of the sacrum in four males 

 has an average transverse diameter of 122-7 mm., while in two 

 females this diameter averages 107 - 5 mm. The jtclrw bones are too 

 fragmentary to admit of measurement. 



Clariclv. There are two clavicles, a right and a left, and both 

 male 1 tones. They measure 155 and 142 mm. respectively. They are 

 comparatively slender bones, remarkably straight and with a large 

 flat surface for the origin of the pectoralis major muscle. 



HtniH-rtix. Eight bones in all are preserved, six male and two 

 female. The shortest bone measures 297 mm. and the longest 335 

 mm. They are short stout bones with well-marked deltoid impres- 

 sions. 



BoiH'x <>/' Fnrcnrni. There are seven radii. The average maximum 

 length of six male bones is 232'1 mm., while one female bone meas- 

 ures 228 mm. Two male ulnae average 254 mm. and a female bone 

 measures 251 mm. in length. 



The radio-humeral index ranges from 71 to 751. The average 

 index is 74'1, practically that of the modern European. 



Femur. The average length of six male bones is 450 - 6 mm. The 

 longest male bone measures 472 and the shortest female bone measures 

 only 408 mm. The average platymeric index is 77 "1 and the average 

 pilasteric index is 104 'D. 



Tibia. Its maximum length varies from 356 to 327 mm. The 

 condylar surface on the external tuberosity is in most cases distinctly 

 convex from before back, and at the same time the head of the tibia 

 is somewhat retroverted. There is a marked degree of platycnemia 

 in the majority of the male bones, but not so marked in the female 

 pair. 



Fibula. The fibuhe are mostly broken, only pieces of the shaft 

 remaining. There are three male bones intact, and these show 



