Footnote 79:
H. D. Rogers, Geology of Pennsylvania, vol. 2, pt. II, pp. 761, 762, 1858.
Footnote 80:
Connecticut Academy of Arts and Sciences, 1810; quoted by G. P. Merrill in Contributions to the History of North American geology, Ann. Rpt. Smithsonian Institution for 1904, p. 216.
Footnote 81:
A Sketch of the geology, mineralogy, and scenery of the regions contiguous to the river Connecticut; with a geological map and drawings of organic remains; and occasional botanical notices, the Journal, 6, 1–86, 201–236, 1823; 7, 1–30, 1824.
Footnote 82:
Clarence King, U. S. Geol. Exploration of the Fortieth Parallel, vol. 1, pp. 16, 44–48, 1878.
Footnote 83:
Illustrations of the Huttonian Theory of the Earth, pp. 219–238, 1802.
Footnote 84:
Robert Jameson, Elements of Geognosy, pp. 55–57, 1808.
Footnote 85:
G. P. Merrill, Contributions to the History of American Geology. Report of the U. S. National Museum for 1904, p. 328.
Footnote 86:
H. D. Rogers, Geology of Pennsylvania, vol. 2, p. 916, 1858.
Footnote 87:
James Hall, Natural History of New York, Paleontology, vol. 3, pp. 51–73, 1859.
Footnote 88:
The Journal, 5, 423–443, 474, 475; 6, 6–14, 104–115, 161–172, 304, 381, 382, 1873.
Footnote 89:
C. R. Van Hise, Principles of North American Pre-Cambrian Geology, U. S. Geol. Surv., 16th Ann. Report, pt. I, pp. 607–612, 1896.
Footnote 90:
W. N. Rice, On the use of the words synclinorium and anticlinorium, Science, 23, 286, 287, 1906.
Footnote 91:
C. E. Dutton, Critical observations on theories of the earth’s physical evolution, The Penn Monthly, May and June, 1876.
Footnote 92:
B. Willis, Research in China, vol. 2, 1907.
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