DAHTON.] 



NORTH AMERICAN GEOLOGY, 



349 



Devonian — Continued. 

 West of the Appalachians to the 

 Mississippi and Minnesota — Con- 

 tinued. 



1870. Calhoun, Pike, Adams, Brown, 



Schuyler, and Fulton coun- 

 ties, 111., Worthen. 



1871. General geology of Michigan, 



Winchell, A. 

 Oil -wells of Terre Haute, Ind., 



Hunt, T. S. 

 Geology of Highland County, 



Ohio, Orton, E. 

 Geology of Williams, Fulton, 



and Lucas counties, Ohio, 



Gilbert, G. K. 

 Report of survey of Ohio for 



1869, Newberry. 

 Notizen aus Minnesota, Kloos. 

 Oil-hearing rocks of Ohio and 



Virginia, Warner. 

 The Marshall group, Win- 

 chell, A. 

 Report on second district of 



Ohio, Andrews. 

 Chemical report of survey of 



Ohio, Wormley. 

 Geology of Geauga and Holmes 



counties, Ohio, Read, M. C. 

 Oil wells of Terre Haute, Ind., 



Hunt, T. S. 

 Fossils from Marshall group of 



the West, Winchell, A. 

 Agricultural survey of Ohio, 



Klippart. 



1872. Reoonnaisance in Jasper to How- 



ard counties, Ind., Collett. 



1873. Report of survey of Ohio, New- 



berry. 



Geologic map of United States, 

 Hitchcock, C. H.; Hitchcock 

 and Blake. 



Paleozoic rocks in upper Mich- 

 igan, Rominger. 



Surface geology of Maumee 

 Valley and geology of coun- 

 ties of Ohio, Gilbert, G. K. 



Reports on Ashtabula, Trum- 

 bull, Lake, and Geauga coun- 

 ties, Ohio, Read, M. C. 



Northwestern counties of Illi- 

 nois, Shaw. 



Reports on Sandusky, Seneca, 

 Wyandot, and Marion coun- 

 ties, Ohio, Winchell. N. H. 



Bevonian — Continued. 

 West of the Appalachians to the 

 Mississippi and Minnesota — Con- 

 tinued. 



1873. Rock Island County, 111., 



Worthen and Shaw. 



Ohio gas wells, Newberry. 



General sketch of geology of 

 Minnesota, Winchell, N H. 



Chart of nomenclature for Min- 

 nesota, Winchell, N. H. 



Report of third district of Ohio, 

 Orton. 



Surface geology of northwest- 

 ern Ohio, Winchell, N. H. 



1874. Erie and Lorain counties, 



Ohio, Newberry. 

 Observations in Dekalb to La- 



porte counties, Ind., Lever- 



ette. 

 Devonian limestones in Ohio, 



Winchell, N. H. 

 Report on second district of 



Ohio, Andrew, E. B. 

 Resources of Tennessee, Kille- 



brew. 

 Fifth report of survey of Indi- 

 ana, Cox. 

 Geology of Ottawa to Defiance 



counties, Oh*o, Winchell, 



N. H 

 Hamilton in Ohio, Winchell, 



N. H. 

 Survey of Clark and Floyd 



counties, Ind., Borden. 

 Report on third district of Ohio, 



Orton, E. 



1875. Sixth report on survey of Indi- 



ana, Cox. 

 Geology of Cheboygan and Old 



Mackinac, Winchell, N. H. 

 Scott and Jefferson counties, 



Ind., Borden. 

 Mower to Freeborn counties, 



Minn., Winchell, N. H. 

 Geology cf Brown County, 



Ind., Collett. 

 Geologic chart of the United 



States, Bradley, F. H. 

 Jackson County, Ind., Cox. i 

 Map of Illinois, Worthen. 



1876. Tennessee, agriculture, mineral 



wealth, etc., Killebrew. 

 Ratification of geologic map of 

 Michigan, Winchell, A. 



