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“Once water is through the brick, it goes downhill. If it doesn’t meet a flashing point and go out, it stays in.”

Such oils have a very poor cold test, as they solidify at comparatively high temperatures, and their flashing point is so low that they cannot be used at points where much heat exists.

But the man managed to avoid that flashing point by a sideward lunge, keeping his balance with difficulty in the shifting sands.

No. 1 0.821 137� C. No. 2 0.884 165� C. No. 3 0.815 150� C. No. 4 0.895 156� C. There is a considerable difference in the flashing point, no doubt due to the longer or shorter exposure of the crude turpentine, by which more or less of the volatile portion escapes.

A great advantage of this oil is that the flashing point is 110, and so is well above the limit, thus doing away with the dangers and troubles inseparable from the storage of light naphtha in bulk.