Not a breath of air stirred over the free and open prairie; the clouds were like light piles of cotton; and where the blue sky was visible, it wore a hazy and languid aspect. The sun beat down upon us with a sultry penetrating heat almost insupportable, and as our party crept slowly along over the interminable level, the horses hung their heads as they waded fetlock deep through the mud, and the men slouched into the easiest position upon the saddle. At last, towards evening, the old familiar black heads of thunder-clouds rose fast above the horizon, and the same deep muttering of distant thunder that had become the ordinary accompaniment of our afternoon's journey began to roll hoarsely over the prairie. Only a few minutes elapsed before the whole sky was densely shrouded, and the prairie and some clusters of woods in front assumed a purple hue beneath the inky shadows. Suddenly from the densest fold of the cloud the flash leaped out, quivering again and again down to the edge of the prairie; and at the same instant came the sharp burst and the long rolling peal of the thunder. A cool wind, filled with the smell of rain, just then overtook us, leveling the tall grass by the side of the path.
"Come on; we must ride for it!" shouted Shaw, rushing past at full speed, his led horse snorting at his side. The whole party broke into full gallop, and made for the trees in front. Passing these, we found beyond them a meadow which they half inclosed. We rode pell-mell upon the ground, leaped from horseback, tore off our saddles; and in a moment each man was kneeling at his horse's feet. The hobbles were adjusted, and the animals turned loose; then, as the wagons came wheeling rapidly to the spot, we seized upon the tent-poles, and just as the storm broke, we were prepared to receive it. It came upon us almost with the darkness of night; the trees,
