50 



304. The head, neck and shaft of the corresponding rib of the left side, in 

 which the two articular surfaces, which are distinct in the twelfth rib, 

 have become confluent. 



305. The vertebral portion of the fourteenth rib of the right side : it has only 



one articular surface at the proximal end. 



306. The proximal, or vertebral end of the corresponding rib of the left side. 

 307- The vertebral portion of the fifteenth rib of the right side. 



308. The vertebral extremity of the corresponding rib of the left side. 



309. A fragment of apparently the sixteenth and last rib. 



310. A corresponding fragment of the opposite side. 



311. The ossified sternal portion of an anterior rib of the right side : the sternal 

 extremity is divided by a deep rough notch, on each side of which is a 

 convex articular surface : the lower one is constricted in the middle and 

 divided into two. 



312. The ossified sternal portion of a more posterior rib of the right side : the 



lower articular surface of the sternal end is continuous with the inner 

 portion of the upper articular surface, the outer portion of which is 

 distinct. 



313. The ossified cartilage of a rib of the left side, the sternal extremity of 

 which presents three articular surfaces. Both in this and the preceding 

 bone there is an articular surface near the costal extremity, which joins 

 a contiguous sternal rib. 



314. The manubrium sterni. The triangular articular surface on each side is 



for the first rib ; the inferior convexity is for the succeeding bone of 

 the sternum ; and the rough depressions above the costal articulations 

 are for the attachment of the clavicular ligaments. 



315. One of the bones composing the body of the sternum. It is remarkable 



for the number of its articular surfaces, which are not fewer than ten : 

 one of these is situated on the anterior, another on the posterior part of 



