152 



BULLETIN OF THE 



Mining Mag., 1855, (1,) vi. 28-37, 99-lOG, 207-213, 4U-418; vii. 



2-19-355,359-307; 1857, ix. 00-05. 

 Notice sur Ic Lac Supcricur. Annales dcs Mines, 1850, (5,) x. 305 -474. 

 Ubcr die Kupt'crcrz-Lagcrsiatien am Obersce in den Nordamcrikanischen 



rreistaaten. Ecrg. u. Iliitten. Zeit., 1850, pp. 201 - 203, 209 - 271, 293 - 



295, 277-279, 314, 315, 317, 318, 325-328, 333, 334, 341-343,' 349- 



351, 357-359, 305-307, 381,382. 

 Analysis of Lake Superior Iron Ore. Mining Mag., 1850, vii. 301. 

 Rogers, H. D. 



Mineralogy and Geology of Lake Superior. Proc. Bost. Soc. Nat. Ilisi, 

 1840, ii. 124, 125. 



Rogers, WilUam B. 



On tlie Origin of the Actual Outlines of Lake Superior. Proc. Am. Assoc. 



Adv. Sci., 1848, i. 79, 80. 

 Age of the Sandstone. Proc. Bost. Soc. Nat. Hist., ISOO, vii. 394, 39o. 



Rolker, Charles M, 



The Alloucz Mine and Ore Dressing, as practised in the Lake Superior Cop- 

 per District. Trans. Am. Inst. Min. Eug.,1877, v. 584-600. 



Rotninger, Charles. 



Observations on the Ontonagon Silver Mining District and tlic Slate Quarries 



of Huron Bay. Geol. Surv, of Michigan, 1876, iii. 153 - 100. 

 See T. B. Brooks, Geol. Siii'v. of Michigan, 1873, i., Part III. 



Rottermund, Count de. 



lleport on the Exploration of Lakes Superior and Huron. Canada Legisla- 

 tive Assembly, 1856, 24 pp. ; Canadian Jour., 1856, (2,) i. 440 -452. 



Ruggles, D. 



Tides in the North American Lakes. Am. Jour. Sci., 1843, (1,) xlv. 



18-27. 

 Considerations respecting the Copper Mines of Lake Superior. Am. Jour. 



Sci., 1845, (1,) xlix. 04-72. 



Russell, John L. 



Wood from the Terraces of Lake Superior. Proc. Bost. Soc. Nat. Hist., 



1850, iii. 273. 



Sanders, George N, 



Mineral Lands of Lake Superior. Senate Docs., 2d Sess. 28tli Cong,, 1844- 



45, vii., No. 117, pp. 3 - 9 ; xi.. No. 175, pp. 8 - 14. 

 See John Stockton. 



Sauvage, E. 



Notice sur les Minerais de Per du Lac Supcricur. Annales dcs Mines, 1875, 

 (7,) viii. 1-35. 



Schoolcraft, Henry R, 



Narrative Journal of Travels throus^h the Northwestern Bej^ions of the United 



Slates, extending from Detroit through the Great Chain of American 



Lakes to the Sources of the Mississippi River. Albany, 1821, 419 pp. 

 with map. 



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