Each foot had five toes, furnished with strong nails, probably to aid it in burrowing, as it usually lived under ground on the plains.
A remarkable fact, characteristic of the country west of the Rocky Mountains, is the mildness and equability of the climate.

The great mountain barrier seems to divide the continent into different climates, even in the same degrees of latitude.

The rigorous winters and sultry summers, and all the capricious inequalities of temperature prevalent on the Atlantic side of the mountains, are but little felt on their western declivities.

The countries between them and the Pacific are blessed with milder and steadier temperature, resembling the climates of parallel latitudes in Europe.

In the plains and valleys but little snow falls throughout the winter, and usually melts while falling.