that it cannot burn very fast. When the grass is burnt off in this way there is nothing left for what we call the 'prairie-fire' to burn, you see. If we can do this in season, the house or stacks are generally safe."
How tired every one was all day after the prairie-fire! Well would it have been if the matter had terminated in fatigue. Early in the day the feeble mother had to betake herself to her bed; and on the following morning Mr. Allis, to his great surprise, found himself rudely shaken by the ague. Not many days passed ere Mrs. Allis and Mary found themselves at the mercy of the same annoying visitor. Sometimes the three shook in concert; and then you may imagine that the little girls had enough to do to carry water to satisfy their thirst. Occasionally the chills would seem to be broken up for a few days, and then they would most unexpectedly return. Several times Mr. Allis thought himself perfectly well, and once or twice he went to the