Philp's Washington described. A complete view of the American Capital, and the District of Columbia; with many notices, historical, topographical, and scientific, of the seat of government (1861)
New York, Rudd & Carleton; Philadelphia, J.B. Lippincott & co.; [etc., etc.] · leaf 28
18 WASHINGTON DESCRIBED. state of aggregation, as if the clay and loam had been at first separate, and in masses of considerable size, and … of the tertiary is well adapted to the manufacture of brick, and constitutes the basis of this manufacture in Washing¬ ton. The parts A, A, A, in the sketch, represent the gneiss rock, which was originally compact and, apparently, durable, and, as found in the neighborhood of Little Falls, some two…
Washington (D.C.) -- Description and travel
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