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532. The metatarsal bone of the fourth toe. This metatarsal is smaller than 



the second ; its outer rough surface is convex, its inner one nearly 

 straight, but with a small concave facet bounded by a raised ridge, and 

 adapted to the convex articular surface in the depression on the opposed 

 surface of the third metatarsal : the oblong posterior articular surface 

 adapted to the os cuboides is slightly concave, with the transverse 

 diameter equal to half the vertical one: the anterior surface for the 

 fourth toe is triangular and nearly flat ; there are two sesamoid grooves 

 on the under part of this metatarsal bone. There are no remains of the 

 small external or fifth toe, but its existence is indicated by a very small 

 flat articular facet on the outer side of the fourth metatarsal bone, and 

 by the extent of surface on the cuboid, which this metatarsal leaves un- 

 covered. Presented by Sir JVoodbine Parish, K.H. 



533. The proximal phalanx of the second toe: it is a vertically oblong, com- 



pressed plate of bone, thicker above than below in the antero-posterior 

 direction ; a protuberance rises from the middle and posterior part of 

 the upper surface ; the lower margin presents a deep and narrow notch. 

 The posterior surface is slightly concave, the anterior one flat, with a 

 rough spot in the centre. Presented by Sir JVoodbine Parish, K.H. 



534. The middle phalanx of the second toe. This is still more compressed 



than the first ; its greatest, length or antero-posterior extent, which is at 

 the upper part, measures only six lines, whilst its vertical diameter is 

 twenty lines, and its transverse diameter seventeen lines ; its lower 

 margin is notched like the preceding phalanx, and at the middle of the 

 posterior articular surface there is a central depression. From the very- 

 slight extent of motion allowed by the flattened articulations of the toes, 

 one cannot be surprised that the synovial bag should have become in part 

 obliterated, as these rough places in the centre of the articulating surfaces 

 indicate to have happened. 



Presented by Sir JVoudbine Parish, K.H. 



535. The distal or ungual phalanx of the second toe : this presents a very re- 



markable form ; it is suddenly expanded in breadth and depth imme- 

 diately beyond the articular facet adapted to the preceding phalanx, and 



