. Bacon's descriptive handbook of America .. . ominates. It embraces the eastern ridges ofthe Alleghanies with the rolling country at their foot. Onthe west side of this again is a long narrow zone of transi-tion rocks, including the western ridges of the Alleghanies,and extending from Lake Champlain to the north-westangle of Georgia. One of the most remarkable circumstances connectedwith the primitive rocks is the granite ridge which formsthe boundary between the primitive and the alluvial ridge appears to have been the ancient line of thesea-coast in the Southern and Middle Stat
. Bacon's descriptive handbook of America .. . ominates. It embraces the eastern ridges ofthe Alleghanies with the rolling country at their foot. Onthe west side of this again is a long narrow zone of transi-tion rocks, including the western ridges of the Alleghanies,and extending from Lake Champlain to the north-westangle of Georgia. One of the most remarkable circumstances connectedwith the primitive rocks is the granite ridge which formsthe boundary between the primitive and the alluvial ridge appears to have been the ancient line of thesea-coast in the Southern and Middle States, and veryprobably through Connecticut. New England rests on a bed of granite and marble ; theMiddle States on sandstone and freestone; and the greaterpart of the Ohio River region has a foundation of lime-stone. The oldest known strata in the crusts of the earth, theLaurentian series, consisting of gneiss, more or less granitic,quartz rock, limestones, dolomites, conglomerates, and inthe upper portion of feldspathic rocks, occur in the man. ! -^ Mftr
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Keywords: ., bo, bookcentury1800, bookdecade1860, bookidbaconsdescriptiv00baco
