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Looking south from Cobham Hill over surface of the dissected Harrisburg peneplain. Shows the even skylines due to peneplanation. Warren County, Pennsylvania. 1909. Figure 4 in U.S. Geological Survey. Folio 172. 1910.
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Anticline overturned to northwest, Louisville and Nashville Railroad, one-half mile south of Graces Gap. Jefferson County, Alabama. 1906. Plate 4-B in U.S. Geological Survey. Bulletin 400. 1910.
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Southeast down Juniata River valley across Huntingdon, high point in distance on right formed by the convergence of Terrace Mountain and Sideling Hill on the axis of the Trough Creek syncline; Crest of Jacks Mountain on left. Huntingdon County, Pennsylvania. 1924. Plate 5 in U.S. Geological Survey. Folio 227. 1945.
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Brallier shale, these thick beds are thinly laminated and break down into thin chips on weathering. Cut on Pennsylvania railroad about half a mile east of Huntingdon, looking north. Huntingdon County, Pennsylvania. 1924. Plate 20 in U.S. Geological Survey. Folio 227. 1945.
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Shale in Gasper formation with overlying Hartselle sandstone, Red Gap, just east of Gate City, northeast environs of Birmingham, the Red Gap fault, on which the movement causing the earthquake in 1914 took place, is near and along the highway. Jefferson County, Alabama. 1925. Plate 19 in U.S.Geological Survey. Folio 221. 1927
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