Of the elephant of Africa I am not qualified to speak, nor of the nature of the ground which it most frequents; but certainly the facts in connection with the elephant of India are all irreconcilable with the theory mentioned above. In Bengal, in the Nilgherries, in Nepal, in Burmah, in Siam, Sumatra, and Ceylon, the districts in which the elephants most abound, are all hilly and mountainous. In the latter, especially, there is not a range so elevated as to be inaccessible to them. On the very summit of Adam’s Peak, at an altitude of 7,420 feet, and on a pinnacle which the pilgrims climb with difficulty, by means of steps hewn in the rock, Major Skinner, in 1840, found the spoor of an elephant. Prior to 1840, and before coffee-plantations had been extensively opened in the Kandyan ranges, there was not a mountain or a lofty feature of land of Ceylon which they had not traversed, in their periodical migrations in search of water; and the sagacity which they display in “laying out roads” is almost incredible. They generally keep along the _backbone_ of a chain of hills, avoiding steep gradients: and one curious observation was not lost upon the Government surveyors, that in crossing valleys from ridge to ridge, through forests so dense as to obstruct a distant view, the elephants invariably select the line of march which communicates most judiciously with the opposite point, by means of the safest ford.[69] So sure-footed are they, that there are few places where man can go that an elephant cannot follow, provided there be space to admit his bulk, and solidity to sustain his weight. In 1865 a capture of elephants was attempted at Avisavelle in Ceylon: the corral was constructed close to a wall of rocks so precipitous and high that it was considered superfluous to continue the enclosure in front of them. But over these rocks the elephants made their escape, and the corral was a total failure.[70] This faculty is almost entirely derived from the unusual position, as compared with other quadrupeds, of the knee joint of the hind leg; arising from the superior length of the thigh bone, and the shortness of the metatarsus: the heel being almost where it projects in man, instead of being lifted up as a “hock.” It is this which enables him, in descending declivities, to depress and adjust the weight of his hinder portions, which would otherwise overbalance and force him headlong.[71] It is by the same arrangement that he is enabled, on uneven ground, to lift his feet, which are tender and sensitive, with delicacy, and plant them with such decision as to ensure his own safety as well as that of objects which it is expedient to avoid touching.