548 



than the anterior root. There is no acromion. The coracoid is a low tubercle : the glenoid 

 cavity nearly circular. 



3283. The right humerus. 



The canal for the medullary artery perforates the external supinator ridge at the back part 

 of the bone and inclines downwards. There are three tuberosities at the proximal end ; the 

 middle one is the largest in size, and, with the outer one, answers to the great tuberosity. 



3284. The right ulna. 



It is remarkable for the great size of the compressed olecranon. The rough surface of 

 attachment for the radius is grooved longitudinally. The contracted distal end presents a 

 small trochlear surface to the carpus, and a very narrow articular strip to the radius. 



3285. The right radius. 



3286. The os innominatum. 



Two tubercles are developed from the part forming the brim of the pelvis. The tuberosity 

 of the ischium is produced into two processes. The slender pubis is bent at a right angle, 

 the symphysial part being the longest. The outer surface of the ilium is divided into two 

 concavities : the inner surface is convex. 



3287. The right femur. 



The canal for the principal medullary artery enters the fore part of the shaft, one-fourth of 

 its length from the upper end, and inclines downwards and backwards ; a second canal enters 

 the back part of the middle of the shaft and runs upwards and forwards. 



3288. The left femur. 



It shows the same position and direction of the principal medullary artery. 



3289. The right tibia. 3290. The right fibula. 



3291. The right astragalus. 



The anterior articular surface is divided into two subequal facets, the outer one for the 

 cuboides being the largest and least prominent. 



