It is, of course, a well-known fact that the newly-born European baby possesses a wonderful mobility in its feet; and such might also be acquired by people who have lost their arms; but the wearing of boots usually deprives modern nations of this freedom of movement. The aborigines of Australia make frequent use of their toes. A considerable lateral flexibility of the end phalanges enables them to lift small objects off the ground between the big and second toes. Spears are carried by warriors, between the toes of either foot, to conceal the weapons in the grass; and so the enemy is led to believe that the men are unarmed.

When collecting firewood, the gins never stoop to pick up the pieces, but lift them with their toes to the level of their hands. The hands then pile the fuel upon the head and hold it there until sufficient has been collected to carry back to camp.

The power of being able to use the toes in the manner described depends upon the development of a muscle, which arising from the outer side of the fibula and terminating in a long tendon, passes obliquely across the sole of the foot, to insert itself into the metatarsal bone of the great toe. This is the long peroneus muscle, the function of which, in the monkeys at any rate, is to keep the big toe in opposition. In man, moreover, this muscle helps considerably to maintain the arch of the foot. Flatfoot is eminently rare among the aborigines; only one or two cases have come under observation.

When walking, the aboriginal carries his foot so that it points directly ahead of him, and not, as has been written, “with his toes well turned out.” If anything, the sole of the foot is slightly tilted so that the outer border touches the ground a little in advance of the ball.

There is no doubt the outer surface and the ball of the foot play an important role in the art of tree-climbing, as it is practised by the Australians and other primitive peoples. Several methods are in vogue; they will be described later. Suffice it, for the time being, to refer to one: In pursuit of small marsupials, young birds, honey, nuts, fruits, or any other things good to eat, the aboriginal often has occasion to ascend the tall smooth trunks of trees, which harbour such articles in abundance. This is done, often without the aid of any implement, in the following way: The hunter faces the tree and applies the palms of his hands to the opposite side of the butt. As he tightens his hold with his fingers, he springs from the ground and clutches the butt between the soles of his feet. The arches adjust themselves to the convexity of the trunk, whilst the pressure of the outer edges and balls of the feet prevent the limbs from slipping. In this posture, the hunter is virtually hanging by his arms, which are hooked by the hands, and is sitting upon his heels, which are fixed firmly against the tree, as described. Holding his head well back between the shoulder-blades, he suddenly lifts his body upwards with his thighs, while his hands, momentarily relaxing their hold, are pushed upwards also. Now the fingers again tightly clasp the trunk, and the feet are quickly lifted and tucked under the buttocks, to again support the weight of the body as before. The same actions are repeated, time after time, and it is not long before the climber reaches the nearest branches, when progress is simplified. Vide [Plate XIX], 2.

PLATE II

Comparison of European with Aboriginal figure.

“We notice, when looking upon the figure of an aboriginal in profile, and comparing it with that of an European in a similar position, a straightness of the spine.”

This ancient custom of tree-climbing is not peculiar to the Australians, but is adopted by most primitive races. It is very probable, too, that the prehistoric races were to a large extent arboreal, and made use of similar methods of tree-climbing. When considering the evolution of the human foot, therefore, we will have to remember that it has been to some extent influenced by the tree-climbing factor, which, indeed, must be considered in the light of a forerunning stage in the acquisition of the upright attitude by man.