"would then represent the entire Helderbergian and the Leperditia leaving into the Marlins. The Leperditia are some one layer near the top of the Blue Limestone layers. These resemble the ordinary brutalines with their thin paper like layers. A Spring comes out just below the base of the Leperditia beds in what appears to be the top of the Rockwood. All of the latter is unexposed and nothing could be determined as to the exact base of the Marlins. Left Bluefield at 2 P.M. for Big Stone Gap. Arrived at the place at 9 P.M. As usual at some place the train cannot be delayed and we arrived two about one hour later. Coming through the mountains I am impressed that the range from Virginia City to Coalville is not due to elevation but to erosion. The strata are horizontal the valleys deep and steep. The railroad plunges through the earth and air. Coal is mined and coke burned