MUSEUM OF COMPAUATIVE ZOOLOGY. 141 



Copper Milling ou Lake Superior. Trans. Am. lust. Min. Eug., 1S77, vi. 



275-312. 

 The Conglomerates of Lake Superior, and tlie Methods of Dressing Copper. 



Trans. Am. Inst. Min. Eng., 1877, v. GOG-GU. 



Emmons, Ebenezer. 



Copper ^Miues of Lake Superior. American Geology, iUbany, 1835, pp. 171 



-173. 

 Foster, J. W. 



Ou Certain Phenomena connected with the Rise and Fall of the Waters of 



the Northern Lakes. Proe. Am. Acad., ISl'J, ii. 131-13G; Ann. Sci. 



Diseov., 1850, pp. 245, 246 ; Edinburgh New Phil. Jour., 1850, xlix. 172. 

 Catalogue of Rocks, Minerals, etc., collected by J. W. Foster. Smithsoniaa 



Report, 1854, 384-387. 

 Ou the Antiquity of Man in North America. Trans. Cliicago Acad. Sci., 



18G7-G9, pp^ 227-257. 

 Ancient Mining by the Mound-builders, in the " Pre-historic Races of the 



United States." Chicago, 1873, pp. 3G1-374. 



Foster, J. W., and J. P. Kimball. 



Geology and Metallurgy of the Irou Ores of Lake Superior. New York, 1865, 

 97 pp., with maps. 



Foster, J. W., and J. D. Whitney. 



Syno[)sis of the Explorations of the Geological Corps in the Lake Superior 

 Land District in the Nortliern Peuiusula of Michigan. Senate Docs., 

 1849 - 50, iii.. No. 5, 605 - G2G. 



Report ou the Geology and Topography of the Lake Superior Laud District. 

 Part I., Copper Lands. Executive Docs., 1st Sess. 31st Cong., 1849 - 50, 

 Lx., No. 69, 244 pp. with map; Am. Jour. Sci., 1S51, (2,) xii. 222-239. 

 Part II., The Iron Region, together with the General Geology, contains 

 additional Reports by James Hall, Edward Desor, Charles "Whittlesey, 

 and W. D. Whitney. Senate Docs., Special Sess. 32d Cong., 1851, iii.. 

 No. 4, 406 pp. with maps ; Am. Jour. Sci., 1853, (2,) xv. 295, 296 ; 1854, 

 (2,) xvii. 11-38, 181-194. 



Report on the Iron Distiiet of Lake Superior. Senate Does., 2d Sess. 31st 

 Cong., 1850-51, ii.. No. 2, 147-152. 



Aperyu de I'ensemble des Terrains Siluriens du Lac Superieur. Bull. Soc. 

 Geol. France, 1850, (2,) viii. 89-100. 



On the Azoic System, as developed in the Lake Superior Land District. Proc. 

 Am. Assoc' Adv. Sci., 1851, v. 4-7. 



Ou the Age of the Sandstone of Lake Superior, with a Description of the Phe- 

 nomena of the Association of Igneous Rocks. Proc. Am. Assoc. Adv. 

 Sci., 1851, V. 22-38. 



On the Ditlerent Systems of Elevation which have given Configuration to 

 North America, with an attempt to Identify them with those of Europe. 

 Proc. Am. Assoc. Adv. Sci., 1851, v. 136-151. 



