Development of the Bones of the Upper Limh. 29 



2. 57. Ossification in the Bones of the Forearm.— Bones of 



the right forearm of a young person, said to be 15 years old — 

 macerated and dried — to show the epiphyses. 



In the radius at the lower end an epiphysis forms the 

 carpal articular surface and the styloid process, and at the upper 

 end a small plate of bone (lost in this specimen) forms the 

 articular surface with the humerus. On the ulna an epiphysis 

 forms the styloid process and the lower articular surface, while 

 at the upper end there is a small epiphysis for the olecrannon. 



G. C. 3539. 



Presented by Charles W. Cathcaet, F.R.C.S.E., 1893. 



2. 58. Development of Forearm.— Ulna of a child— injected 



and in spirit. 



The epiphyses are shown as in the previous specimen. 



2. 59. Development of Hand.— Skeleton of the hand of a foetus 

 between the fifth and sixth month — in turpentine. 



There is only one point of ossification in the carpus. The 

 metacarpal bones and all the phalanges of the thumb and first 

 three fingers show centres of ossification, but in the little finger 

 there is a centre of ossification in the first phalanx only. 



B. C. 1. K 97. 



2. 60. Development of Hand. — Skeleton of the hand and part 

 of the forearm of a foetus about the sixth month — injected and 

 in turpentine. 



One centre of ossification is seen in the carpus and also in 

 the metacarpal bone and phalanges of the thumb and all the 

 fingers. B. C. 1. X. 95. 



2. 61. Development of Hand. — Skeleton of the hand and part 



