290 



triangle; its neck is thick, and its head is still more so. It 

 has two facettes ; one rough, which joins the ilium, and a 

 smooth one which contributes to form the cotyloidal cavity. 

 From the neck there passes forwards, and a little outwards, 

 a flat apophysis which supports the pubis. 



The pubis is a flat bone forming an isosceles triangle, 

 supported by a cylindrical pedicle, which articulates with 

 the apophysis of the neck of the ischium. The bones of the 

 pubis do not touch, but are carried obliquely forwards and 

 rather inwards, and are supported by the same aponeurosis 

 which retains the false abdominal ribs. 



The femur is a little longer than the humerus, and is 

 curved in a contrar}^ way. Its head is compressed in nearly 

 a horizontal direction. Its only trochanter is a bluntish 

 projection at about a quarter of its length from the top. 

 Its lower extremity is widest in its transverse direction, and 

 divides behind into two distinct condyles. 



The tibia differs less than the cubitus does from the ge- 

 neral form in quadrupeds. The fibula is thin and cylin- 

 drical; the head is very compressed; the lower extremity 

 rather triangular. 



The calcaneum does not differ from those of other qua- 

 drupeds, as do the other bones of the extremities. The 

 astragalus is of a very different figure from that which it in 

 general possesses. It has four surfaces : an upper one, 

 small and square, to receive the fibula ; an inner one, ob- 

 lique and elongated, for the tibia ; an external one, in the 

 form of a crescent, which bears against the fib ularian pro- 

 minence of the calcaneum : all the lower part is occupied 

 by an irregular tumid surface, the posterior part of Avhich 

 rests on the astragalian apophysis of the calcaneum, and the 

 remainder supports the two first metatarsals. There are three 

 other bones which may be reckoned among the tarsal bones. 



The metatarsals are not particularly remarkable : they 

 are larger and more equal than the metacarpal. The num- 



