TABLE 01? CONTENTS. 197 



CHAPTER VI. 



Page 

 The Era of stair Surveys, Fourth decade, 1860-1869 503 



Effect of civil war on .State surveys. Literature of the period. New 

 workers. R. Thomassy's Geologie Pratique de la Louisiane. Alexander 

 Winchell's work in Michigan. Sketch of Winchell. Work of D. D. < (wen 

 and Richard Owen in Indiana. Ideas of W. B. Rogers and Louis Agassiz 

 on subsidence and deposition. Work of Francis Moore and S. B. Buckley 

 in Texas. Appointment of J. W. Glenn, State geologist of Texas. Edward 

 Hitchcock's views on the metamorphism of conglomerates. Natural his- 

 tory survey of Maine. First suggestion of a second drift period. J. S. 

 Newberry's views on glaciation. J. P. Lesley on mountain structure; on 

 uplift and erosion. J. D. Whitney's geological survey of California. 

 Logan's Geology of Canada. Sketch of William E. Logan. Work of 

 Alexander Murray and James P. Howleyin Newfoundland. J. W. Daw- 

 son's views on glaciation; his address before the Natural History Society 

 of Montreal. Raphael Pumpelly's work in China. George H. Cook's 

 survey of New Jersey. Sketch of Cook. Work of B. F. Mudge in Kansas. 

 Sketch of Mudge. G. C. Swallow's geological survey of Kansas. Sketch 

 of Swallow. N. S. Shaler's views on continental uplift. Work of C. F. 

 Hartt in Brazil. Work of H. E. Fames in Minnesota. , Eugene W. Ilil- 

 gard's views on the drift. W. C. Kerr's geological survey of North Caro- 

 lina. John L. Le Conte's work on the Union Pacific Railroad. Charles 

 A. White's geological survey of Iowa. J. M. Saffor^l's final report on the 

 geology of Tennessee. E. W. Hilgard's work in Louisiana. Alexander 

 Winchell's survey of Michigan; work of T. B. Brooks. Sketch of Brooks. 

 Work of Raphael Pumpelly and Carl Rominger. Sketch" of Rominger. 

 Newberry's geological survey of Ohio. The Newberry-Whittlesey con- 

 troversy. Views of Dr. E. Andrews on the glacial drift. Views of J. S. 

 Newberry on the glacial drift. Edward Orton's appointment as State 

 geologist of Ohio. Sketch of Orton. Geological survey of Indiana under 

 E. S. Cox. Geological survey of Canada under Selwyn. 



CHAPTER VII. 



The Era of National Surveys or Fifth i ra of State Surreys, 1870-1879 551 



Effect of the civil war on western exploration. New expeditions and 

 new workers. Work of George Little in Georgia. Work of John Murrish 

 in Wisconsin. 0. C. Marsh's first expedition into the West. Albert 

 Hager's work in Missouri. Geological survey of Missouri under Raphael 

 Pumpelly. Views of George Catlin on geology. F. V. Hopkins on the 

 geology of Louisiana. Joseph Le Conte's ideas on mountain making; on 

 continental uplift. Sketch of Le Conte. E. W. Hilgard's work at Petite 

 Anse, Louisiana. W. C. Kerr on effect of earth's rotation. Kerr's work 

 in North Carolina. Sketch of Kerr. Eugene A. Smith's work in Ala- 

 bama. Second geological survey of Kentucky. J. W. Powell's explora- 

 tion of the Grand Canyon of the Colorado. J. P. Lesley on origin of 

 iron ores and on denudation. Work of N. H. Winchell, Henry Newton, 

 and W. P. Jenny in the Black Hills. Petrographic work of J. H. 

 Caswell. I. A. Lapham's geological work in Wisconsin. T. C. Cham- 

 berlin's survey of Wisconsin. R. D. Irving's work in Wisconsin. Third 

 edition of J. W. Dawson's Acadian Geology. Sketch of Dawson. J. D. 

 Whitney's Auriferous Gravels. Whitney's Climatic Changes. Second 

 geological survey of Pennsylvania. Work of I. C. White, J. J. Stevenson, 

 and E. W. Claypole on Pennsylvania survey. Sketch of J. P. Lesley- Work 



