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2.—View showing acre Amer Anacostia Aquia Arundel Atlantic Coastal Plain average Baltimore beds Calvert Chesapeake Bay Choptank Clark color Conrad contains Creek crops crystalline rocks depth described diatomaceous earth District of Columbia Eocene Eocene deposits erosion escarpment estuaries exposed feet forest forms fossils glauconite gneiss gravel greensand hardwood inches iron Jersey Jour Lafayette land Laurel lignite Linne loam localities Magothy marls Maryland Maryland Geological Survey Matawan materials miles Miocene Nanjemoy occur outcrop overlying P.ct Patapsco Patuxent River Piedmont Plateau pine Piscataway Piscataway Creek places Pleistocene portion Potomac deposits Potomac Formation Potomac group Potomac River Potomac strata Prince George's County produced Raritan region Report sand sandy loam slopes soil type species Stratigraphic streams subsoil Sunderland surface Susquehanna clay terrace Tertiary texture thickness timber tion tobacco trees unconformably Upper Marlboro valleys vicinity Virginia Washington Weather Wicomico yellow
Page 45 - TYSON, PHILIP T. Second Report of Philip T. Tyson, State Agricultural Chemist, to the House of Delegates of Maryland, Jan., 1862.
Page 60 - BIBBINS, ARTHUR. Notes on the Paleontology of the Potomac Formations. Johns Hopkins Univ. Circ., vol. xv, 1895, pp. 17-20. The author describes the occurrence of cycads and other plant remains in the Potomac deposits of Maryland. The Contee and Muirkirk localities are described in detail. CLARK, WB Cretaceous Deposits of the Northern Half of the Atlantic Coastal Plain.
Page 63 - Outline of present knowledge of the physical features of Maryland, embracing an account of the physiography, geology, and mineral resources.
Page 35 - ... of the United States, from a personal inspection of some of its strata, and the perusal of most of the publications •which bear a reference to it, I wish to suggest that what is termed the alluvial formation in the geological maps of Messrs. Maclure and Cleveland is identical and contemporaneous with the newer Secondary and Tertiary formations of France, England, Spain, Germany, Italy, Hungary, Poland, Iceland, Egypt, and Hindostan.
Page 48 - HEILPRIN, ANGELO. On the Stratigraphical Evidence Afforded by the Tertiary Fossils of the Peninsula of Maryland.
Page 57 - WOOLMAN, LEWIS. Artesian wells and water-bearing horizons of Southern New Jersey (with a "note on the extension southward of diatomaceous clays and the occurrence there of flowing artesian wells.") New Jersey Geol. Surv., Kept.
Page 51 - The mineral springs of the United States: Bull. US Geol. Survey No. 32, 1886.
Page 59 - NH An outline of the Cenozoic History of a Portion of the Middle Atlantic Slope.