Note 1835 — Chapter VI · (continued 3)

Of the Lake Superior mines, the earliest intelligent account we have is in C. T. Jackson’s Geological Report to the U. S. Gov’t, 1849; but a more extended and connected account appeared the next year in the Report on the Geology of Lake Superior (Washington, 1850), by J. W. Foster and J. D. Whitney, which is substantially reproduced in Foster’s Prehistoric Races (1873), ch. 7. Meanwhile, Col. Charles Whittlesey had published in vol. xiii. of the Smithsonian Contributions his Ancient Mining on the shores of Lake Superior (Washington, 1863, with a map), which is on the whole the best account, to be supplemented by his paper in the Memoirs of the Boston Society of Natural History. Jacob Houghton supplied a description of the “ancient copper mines of Lake Superior” to Swineford’s History and Review of the mineral resources of Lake Superior (Marquette, 1876). Cf. also Annals of Science (Cleveland), i. for 1852; Dawson’s Fossil Men, 61; Baldwin’s Ancient America, 42; Wilson’s Prehistoric Man, i. 204; Dr. Harvey Read in the Dist. Hist. Soc. Report, ii. (1878); Joseph Henry in the Smithsonian Reports (1861; also in 1862); and Short, p. 89, with references.