DABTON.] 



NORTH AMERICAN GEOLOGY. 



141 



Cambrian— Continued. 



Lakes Superior, Michigan, and Hu- 

 ron Region — Continued. 



1851. Systemij of elevation of North. 



America, Foster and Whit- 

 ney. 



Introduction to report on Wis- 

 consin, Iowa, and Minnesota, 

 Owens, D. D. 



Azoic system, Foster and Whit- 

 ney. 



Features of slate, Vermont 

 and Lake Superior, Whitney. 



Geology of Government lands. 

 Lake Superior, Whitney. 



1852. Geology of middle and western 



Minnesota, Norwood. 



Age of copper rocks of lakes 

 Superior and Huron, Lo- 

 gan. 



Sur la carte g^ologique du lac 

 Sup6rieur de Foster et Whit- 

 ing, Desor. 



Survey of Wisconsin, Iowa, 

 Minnesota, etc., Owens, D. D. 



Report on valleys of Minnesota, 

 Mississippi, and Wisconsin 

 rivers, Shumard, B. F. 



Observations on magnetism, 

 Locke. 



Wisconsin south of Lake Supe- 

 rior, Whittlesey. 



1853. Geologic map of United States, 



etc., Marcou, J. 

 Silur-Gebilde von Texas und 



Oberen See, Barrande. 

 Silur-Fauna in Wisconsin and 



New York, Barrande. 



1854. Mines des Etats-TJnis et sur 



grfes rouge du lac Sup&ieur, 



Jackson. 

 Fossil raindrops, Jackson, C.T. 

 Lead district, Daniels, E. 

 Map of Wisconsin, Iowa, and 



Minnesota, Owen, D. D. 

 Report on survey of Wisconsin, 



Daniels. 

 Structure of western upper 



Canada, Logan. 



1855. Catalogue of rocks, Locke. 

 Geologic map of Wisconsin, 



Lapham, I. A. 

 Voyage on Lake Superior, 



Rivot. 

 American geology, Emmons, E. 



Cambrian — Continued. 

 Lakes Supehior, Michigan, and Hu- 

 ron Region — Continued. 



1855. Catalogue of rocks, etc., from 



Portage Lake to Montreal 

 River, Whitney. 



Catalogue of geologic speci- 

 mens, Owen, D. D. 



Catalogue of rocks from survey 

 of Michigan, Jackson, C. T. 



1856. Review of part of geologic map 



of the United States by Mar- 

 cou, Blake, W. P. 



Second report on survey of 

 Wisconsin, Percival. 



Geology of north shore of Lake 

 Superior, Whitney. 



1857. Structure and deposits of Mau- 



rianse. Lake Superior, Daw- 

 son. 

 Huronian and Laurentian of the 

 Canadian survey, Whitney, 

 J. D. 



1858. Report on survey of Iowa, Hall 



and Whitney. 



Georgian Bay district, Mur- 

 ray, A. 

 ■ Geology of North America, 

 Marcou, J. 



Marcou's Geology of North 

 America, Agassiz, A. ; Dana, 

 J. D. 



1859. Paleontology and the moral 



sense, Whittlesey. 

 Notes on Wisconsin, etc., 



Daniels, E. 

 Paleontology of New York, vol. 



3, Hall, J. 



1860. Carboniferous and Jura-Trias 



of the Northwest, Marcou, J. 

 Position of Lake Superior sand- 

 stone, Whitney, J. D. 



1861. Base of Paleozoic in the United 



States, Rogers, W. B. 

 Quebec group and upper cop- 

 per rooks of Lake Superior, 



Logan. 

 Age of red sandstone of Maine, 



Jackson, C. T. 

 Notes on primordial and Ta- 



conio, Marcou, J. 

 First biennial report of survey 



of Michigan, Winchell, A. 

 Report of survey of Michigan, 



Hall, J. 



