The writer in recent years has done considerable geologic work in connection with a study of the oil pools that lie along the extension of the Campton anticline and the Rough Creek uplift, in Kentucky. The result of these observations, added to the work previously done by others, has served to show that there is a zone of disturbance in the Paleozoic rocks which completely crosses the State in an east-west direction. To the west it connects with the Shawneetown fault and Bald Hill uplift, which is shown by F. W. DeWolf on the State geologic map of Illinois as completely crossing southern Illinois into Missouri. To the east it connects with the Warfield-Chestnut Ridge zone of folding, which I. C. White has, with a slight interruption, mapped across the State of West Virginia into Pennsylvania, showing the position of it on . . .