78 SKETCHES OF CREATION. 



Northern New York, and the geologists of the Natural 

 History Survey of that state christened it accordingly from 

 one of these localities (Fig. 22). It was burst through at 

 some subsequent period by some of the granitic rocks now 

 constituting the region of the Adirondacs or, if some of 

 their domes were already islands in the Eozoic ocean (b, 

 Fig. 20), their massive walls have been heaved to higher 

 altitudes by later efforts of nature, since the rocky wrap 

 pings of their flanks have been raised to inclinations which 

 prove disturbance subsequent to their deposition. This 

 sandstone extends southward into Pennsylvania, where, at 

 a still later period, it was upheaved by the convulsion which 

 brought the Alleghanies to light. Still farther south, in 

 Virginia, Tennesseej and Alabama, this ancient sea-bottom 

 has been brought up at intervals along the dislocations of 

 the Appalachian range ; while on the west of the Missis 

 sippi it comes up again in the highlands of Texas and Ar 

 kansas, in Eastern Missouri, and the Northwestern States, 

 and has been broken through in the Black Hills of Dacotah 

 by a comparatively recent protrusion of granite. From 

 Northern New York it trends clown the valley of the St. 

 Lawrence, while in the opposite direction it crosses over to 

 the northern shore of Lakes Huron and Superior underlies 

 the western portion of Superior, and spreads itself out over 

 vast areas in Wisconsin and Minnesota, w T hence its main 

 outcrop sets out for the region of McKenzie s River, on the 

 arctic slope of the continent. 



These localities and regions are but the present places 

 of outcrop or exposure of a solidified bed of sands, which 

 was accumulating in the bottom of the ocean at the time 

 of which we speak. What of the beings that enjoyed the 

 throb of life in those ancient waters ? The renowned pa 

 leontologist of New York, Professor James Hall, has made 

 us acquainted with but two or three distinct creatures 



