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[[blank page]] [[end page]] [[start page]] [[image - pencil sketch of cross section of ground showing various strata and labelled as follows]] Section at Straile's Glen Genesic Shales Spring Branch 20° + 1' ^ Trilobite 4° + 2' Limestone 1° Shale 3° + 2' Base of Limestone Shaly, about a foot. 5° + 8' Hamilton Shales Hamilton Shales Spring Branch [[image - arrow]]