Page:Antiquity of Man as Deduced from the Discovery of a Human Skeleton.djvu/16

10 the entepiconclyle ("internal condyle" of Anthropotomy); the oblique depression noted as the "musculo-spiral groove" is here smooth, broad, and shallow. The ulnar ("internal") side or surface of the shaft begins to be marked by a narrow ridge where the medullary artery enters its canal; this ridge gradually expands into a smooth convex border as it approaches the entepicondyle. The olecranal and coronoid depressions are separated by a strong plate of bone; the former is wide and deep, a small plate of bone rises from its bottom.

In the metacarpal bone, second of the left hand, the ridges for the anconal interosseous muscles are strongly marked; in the phalanx, first of the second finger, the ridges bounding the palmar surface are similarly developed.

Femora.—The shaft of the left thigh-bone (Plate IV. fig. 1) shows a strongly developed "lesser trochanter," a, below which is a rough oblique prominence, b, for insertion of the "iliacus internus" muscle. A more remarkable character is shown by the part receiving the insertion of the "gluteus maximus" muscle. The proximal (upper) portion of the gluteal ridge (fig. 1, c) merits by its size and prominence the name of "third trochanter", answering almost in proportion to the process so-called in most perissodactyle quadrupeds. From this prominence the usual ridge is continued down answering to that termed "external lip of the linea aspera" in Anthropotomy, but stronger; here it forms the inner boundary of a rough