1903
Washington, Henry Stephens. Chemical Analyses of Igneous Rocks In U. S. Geological Survey Professional Paper. Vol. 14. Department of the Interior, 1903.
1904
Lawson, Andrew C.. "The Geomorphogeny of the Upper Kern Basin." Bulletin of the Department of Geology 3, no. 15 (1904): 291-376.
1906
Arnold, Ralph. "Geological Reconnaissance of the Coast of the Olympic Peninsula, Washington." Bulletin of the Geological Society of America 17 (1906): 451-468.
Arnold, Ralph. The Tertiary and Quaternary Pectens of California In U. S. Geological Survey Professional Paper. Vol. 47. Department of the Interior, 1906.
1909
Reagan, Albert B.. "Some Notes on the Olympic Peninsula, Washington." Transactions of the Kansas Academy of Science 22 (1909): 131-238.
1912
Evans, George Watkin. The Coal Fields of King County In Washington Geological Survey Bulletin. Vol. 3. Washington Geological Survey, 1912.
Clapp, Charles H.. Southern Vancouver Island In Department of Mines Memoir. Vol. 13. Canada Department of Mines, 1912.
1915
Daniels, Joseph. The Coal Fields of Pierce County In Washington Geological Survey Bulletin. Vol. 10. Washington Geological Survey, 1915.
Lupton, Charles T.. Oil and Gas in the Western Part of the Olympic Peninsula, Washington In U. S. Geological Survey Bulletin. Vol. 581. Department of the Interior, 1915.
1916
Daly, Reginald A.. "Petrography of the Pacific Islands." Bulletin of the Geological Society of America 27 (1916): 325-344.

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