In the great swamps of emerging Germany, and in the, as yet, only half-drained valleys of Switzerland, lurked then the heavy Dinothere. Huger than the hugest elephant, he carried an enormous body of twenty feet in length, vast and barrel-like, which even his columnar limbs of ten feet long scarcely sufficed to raise from the ground. His uncouth head, elephantine in shape, was furnished with a short proboscis; and two tusks, short and strong, projected from the lower jaw, not curving upward, as in the elephant, but downward, as in the walrus. In the teeming marshes lurked this ungainly beast, half immersed, digging out with his mighty pickaxe-tusks the succulent roots that permeated the soft soil, which his sensitive trunk picked up, and conveyed to his mouth. On the southern slopes of the slowly-rising Himalayas, already clothed with forests of teak, and palm, and bamboo, revelled the Sivathere, another heavy creature, of the bulk of a rhinoceros, and therefore not more than half equalling the German colossus. He too was a strange subject. With a proportionally enormous head, in form somewhat between that of the elephant and of the rhinoceros, minute sunken piggish eyes, and a short proboscis like that of the tapir, he carried two pairs of dissimilar horns. On the forehead were placed one pair, seated upon bony cores, not unlike those of our short-horn oxen. Behind these there rose another pair, large and massive, which were palmated and branching, like those of the fallow-deer, but on a gigantic scale. What sort of a body, and what kind of limbs, furnished the complement of this curiously-compound head, we do not exactly know; but surely it must have been a very remarkable form, as it browsed quietly and blamelessly, among the luxuriant shrubs of those sun-facing slopes. In the same regions a land Tortoise of enormous bulk, far vaster than the vastest of now existing species, to which that ponderous one which will march merrily away with a ton weight on its back, is a mere pigmy, shook the earth with its waddle, and the forests with its hoarse bellowing. Broad roads, like our highways, were beaten by it through the jungle, along which it periodically travelled to the cool springs, leisurely sauntering, and tarrying to munch the fleshy gourds and cactuses that bordered its self-made track. The plains of Siberia, stretching away towards the Arctic Ocean, sheltered countless hosts of huge pachydermatous quadrupeds. A species of Rhinoceros, not less bulky than those of the present age, roamed to the very verge of the Icy Sea; its hide, tough and leathery, was destitute of folds, but was clothed with tufts of rigid gray hair,--an ornament which is denied to our existing degenerates. Two horns, the front one of unusual massiveness and length, were seated, as in several of the African kinds, one behind the other, and were wielded by a head of great strength and development.