It is a proverb of the Spaniards that “who sleeps, dines,” and bears attest its truth, for it is their experience through the long, cold weeks of winter, when the snow is deep and no food is to be got at.  Doubtless the old she bear was content to go to sleep again and forget her hunger, but it may be supposed that the cubs had not learned the philosophy of necessity, and kept her awake with fretful demands which she could not satisfy.  Had the family remained holed up in the winter den and not been tempted out by mild weather to break the long fast, probably the desire for food would have remained dormant, but the taste of food awakened appetite, and exercise sharpened it and created insistent necessity for its satisfaction.  The normal period of hibernation having passed, dreams were no longer acceptable substitutes for dinner.  So the hungry, worrying cubs would not let their dam sleep, and she soon became as ravenous as they and impatient of imprisonment.

Every day Mother Grizzly tried the barrier to find a way out, but for more than two weeks the snow was without a crust that would sustain the weight of a dog, and she could only flounder into the drift a few feet and struggle out again.  Then a light drizzle of rain came, and the next night there was a sharper tingle in the air, a promise of cold weather, and crust began to form.  In a day or two more it would be firm enough to travel upon, and the old Grizzly would lead her starving cubs down into the foothills and hunt for a stray calf or a sheep with which to feed them.

The big snow obliterated mountain roads and trails, and the mail was carried to many of the smaller mountain settlements by men on snowshoes, who took the shortest feasible routes and found smooth traveling a dozen or fifteen feet above the rough, rock-strewn ground.  A Sierra carrier on skis—­the long, wooden Norwegian snowshoes—­with a letter pouch strapped to his shoulders, was tempted by the light crust to leave the ridge and shorten his journey by making a cut-off down the long, smooth slope.  A minute’s swift rush down that slope would save hours of weary plodding above the heads of the gulches.

The carrier studied the stretch of gleaming white carefully to select his course, and determined on a line passing a little below the roots of the fallen pine, which were indicated by a slight fold in the blanket of snow.  Setting his steel-shod staff under his left arm pit to serve as brake and rudder and throwing his weight upon it, the carrier ranged his skis parallel, the right in advance a few inches, fixed his attention upon the range mark he had chosen, gave a slight push with the staff and got under way.  The crust bore his weight easily, and in two seconds he was gliding swiftly.  In five seconds more he was speeding like an arrow from the bow, and the ringing of the steel staff point against the crust arose in a high clear note above the grating sound of the sliding skis.