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"You better not sit down on that kaig," said one of the men calmly, without pausing in his work.

"Why?"

"Well, it's dirty, and, besides, it's nitro-glycerine."

"Nitro-glycerine! Why is it in here, and so close to the stove? Won't it explode?" and I checked a desire to retreat in disorder.

"No, 't'ain't no danger, if it don't get too hot and ain't jarred. You see, it won't go off if it's too cold, so we keep a little in here and kind o' watch it."

The keg was within two feet of the stove. Suppose that a dog or something were to knock it over! But miners do not suppose.

Just then a tremendous explosion in the tunnel seemed to make the whole earth vibrate. It was followed by a rattling and crashing of rocks, which told us that the last cap had gone off and had done good work.

Half an hour later, when it was safe from dynamite fumes, I went back to our hole in the ground. Nimrod had left me, lured away by some fox tracks trailing up the mountain. The weird scene was too interesting for me to leave until the arrival of the fat and lean women (Mrs. Frisco had persuaded Mrs. Kansas to drive her over) caused me to remember that the parlour fire at the Cartersville Hotel must be very comfortable, and that it was a mile and a half of tiresome snow away.