Adirondack Mountains, New York.] In the meantime a barely perceptible motion was communicating itself from one particle to another thru the center of the jam.

* * * The crew redoubled its exertion, clamping its peaveys here and there, apparently at random, but in reality with the most definite of purposes.

A sharp crack exploded immediately underneath.

There could no longer exist any doubt as to the motion, altho it was as yet sluggish, glacial.

Then in silence a log shifted--in silence and slowly--but with irresistible force * * * other logs in all directions up-ended.