. Anniversary memoirs of the Boston society of natural history ; pub. in celebration of the fiftieth anniversary of the Society's foundation. 1830-1880. Natural history; Indians of North America. OF PLANORBIS AT STEINHEIM. 33 II. Geology op GEOLOGICAL MAP. The village of Steinheim in the kingdom of Wurtemburg, stands at the height of about 1867 Wg. feet above the level of the sea.^ It is not far from Heidenheim on the eastern slope of the elevated plateau forming the Wurtemburger Alb. This village, from which the formations described in the following pages acquire their name, and t
. Anniversary memoirs of the Boston society of natural history ; pub. in celebration of the fiftieth anniversary of the Society's foundation. 1830-1880. Natural history; Indians of North America. OF PLANORBIS AT STEINHEIM. 33 II. Geology op GEOLOGICAL MAP. The village of Steinheim in the kingdom of Wurtemburg, stands at the height of about 1867 Wg. feet above the level of the sea.^ It is not far from Heidenheim on the eastern slope of the elevated plateau forming the Wurtemburger Alb. This village, from which the formations described in the following pages acquire their name, and the village of Sontheim, are situated in a valley which is circular in form, surrounding a central hill; Steinheim lying just to the north of this elevation, and Sontheim a short distance to the south. The valley externally, is surrounded by a circle of ridges more or less discon- tinuous where they have been cut through by the drainage of the surrounding highlands. The underlying formations of these ridges is the White or Upper Jura. Those of the central hill, where the overlying Tertiary lunestones and sands have been removed by denudation, comprise representations of all the principal formations from the Lias to the 1 Equal to about English feet, or about Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Boston Society of Natural History. Boston, The Society
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