five years the lake was used only as a fish-pond, and the dam and the gates were forgotten. Five years ago the lake was leased to a number of Pittsburgh men, who stocked it with bass, trout, and other game fish. I have heard it said that the waste-gates had not been opened for a great many years. It this is so, no wonder the dam broke. Naturally the fishermen did not want to open the gates after the lake was stocked, for the fish would have run out. A sluiceway should have been built on the side of the dam, so that when the water reached a certain height the surplus could escape. The dam was not built with the intention that the water should flow over the top of it under any circumstances, and if allowed to escape in that way the water was bound to undermine it in a short time. With a dam the height of this the pressure of a quantity of water great enough to overflow it must be something tremendous.