On the Importance of Geological Information, ^fC. 



Long's Peak, Chippewayan, or Rocky mountains, 

 Mount Washington, N. Hampshire,* 

 Mansfield nnountain, N. Peak, Vermont, 

 Catskill mountains, Round Top, N. York, 

 Black Hills, lat. 40° N. W. of Missouri, 

 Alleghany mountains, in Virginia, 

 Ozark mountains, west of Mississippi, 

 Wisconsan Hills, S. of lake Superior, 

 Catskill mountain-house, N. York, 

 Sources of streams tributary to lakes VVinnepec } 

 and Superior, ) 



Head waters of the Mississippi, 

 Break Neck, near West Point foundery, 

 Rainy lake, S. E. of lake of the Woods, 

 Tourn mountain, Raramapoo, N. Jersey, 

 Lake of the Woods, 

 Dog lake, ..... 

 Source of Miami, 



Source of Sciota, . . . 



Sources of the St. Peter and Red Rivers 

 Mouth of the Platte, Missouri, 

 Mouth of the St. Peter, Mississippi, 

 Lake Winnepec, . . 



Lake Superior, .... 

 Lakes Huron and Michigan, 

 Ohio, near Wheeling, Virginia 

 Lake Erie, ..... 

 Ohio, at Cincinnati, . . . 

 Point Levi, opposite Quebec, . 

 Mouth of the Ohio, 

 Lake Ontario .... 



135 



Edi 



Feet. 

 15,000. 

 6,234. 

 4,279. 

 3,800. 

 3,500. 

 3,100. 

 2,250. 

 2,250. 

 2,214. 



1,200. 



1,200. 

 1,187. 

 1,100. 

 1,067. 

 1,040. 

 1,000. 



964. 



919. 

 • 830. 



680. 



680. 



630. 



595. 



571. 



565. 



565. 



414. 



310. 



300. 



231. 



TOR. 



* This is the loftiest of the White mountains. 



