104 THE BONES. 



large cuneiform bone, between the calcaneus and two of the metatarsals, does 

 not resemble a cube, but a parellelopiped elongated from before to behind, 

 It offers six faces : a superior, an articular face, and in contact with the 

 calcaneus ; an inferior, also articular, responding to the principal and external 

 rudimentary metatarsal bones ; an internal, furnished with three facets for 

 contact with the scaphoid and great cuneiform, and crossed from before 

 to behind by a fissure, which forms with these two bones a vascular canal ; 

 an external, an anterior, and a posterior, covered with imprints. 



Scaphoid bone (the large cuneiform of Percivall). Flattened above and 

 below, it is described as having two faces and a circumference. TMb faces, 

 both articular, are furrowed by a channel of insertion, and are distinguished 

 as superior and inferior. The first is concave, and responds to the astra- 

 galus ; the second is convex and in contact with the two cuneiform bones. 

 The circumference offers, outwardly, two small facets which are adapted* to 

 similar facets on the cuboid bone. For the remainder of its extent, it is 

 covered with imprints. 



Great Cuneiform bone (the middle cuneiform of Percivall). Flattened 

 above and below, and triangular in shape, this bone is much smaller than 

 the scaphoid, though resembling it in a striking manner. Its superior face 

 is in contact with the latter bone, and its inferior face articulates with the 

 middle and internal lateral metatarsal bones. Its external border is 

 provided with one or two facets to correspond with the cuboid bone ; and its 

 internal border also offers one, which is in contact with another on the small 

 cuneiform. Its anterior border is roughened throughout its extent. 

 Fig. 66. Fig, 67. 



LEFT HOCK; FRONT VIEW. LEFT HOCK; INTERNAL ASPECT. 



1, Apex of calcaneus ; 2, Astragalus, inner 1, Apex of calcaneus ; 2, Inner articular 

 ridge ; 3, Scaphoid ; 4, Cuneiform mag- ridge of astragalus ; 3, Navicular, scaphoid, 



num ; 5, Cuboides. or cuneiform medium ; 4, Cuneiform mag- 



num ; 5, Cuboides ; 6, Cuneiform parvum. 



Small Cuneiform bone. Situated at the inner side of the tarsus, this 

 bone, the smallest of any yet examined, is elongated from before to behind, 

 flattened on both sides, and wedged in between the os scaphoides, the large 

 cuneiform bone, and the large and internal small rudimentary metatarsal 

 bones, with which it corresponds by four articular facets : a superior, two 

 inferior, and one internal. When this bone is in two portions, there are 

 then three cuneiforms, which may be distinguished, as in Man, by naming 

 /, second t and third. 



