The phenomena of the Flood in the Devon Valley of the 28th of August last year (1877) appear to me to be so pregnant with suggestions of geological import, that I have presumed to place a description of the flood before you, with some remarks on the relation of the flood phenomena to certain deposits in the Valley of the Devon. At 7.30 on the morning of the flood it became so dark that I could no longer see to read, and laid my book aside. It had previously thundered; immediately after which phenomenon the rain came down as I had never witnessed it before. At 7.45 I heard excited voices at the railway station near by, and immediately left the house to behold a most astounding scene. A river four feet in depth was running as a branch from Dollar Burn down the railway cutting, but where the burn usually runs under the railway, a terrific appearance was presented. The bridge had become blocked, and the water coming against the obstruction, rose into the air as from a volcano, tossing trees and boulders about like straws. I then came near to the burn, which was going along in a series of great leaps, and although the water was as high as my head above its banks, it swerved neither to right nor left, but went straight on like a dart to the bridge. The water was perfectly thick with sediment, and dark in colour. The ground around trembled as