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285. D'lnviUiers, E. V., Summary description of geology of PennBylvania, Carboniferous: Summary Final Kept. 



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286. Dollfuss, Auguste, and Mont-Serrat, E. de, Voyage g^ologique dans les republiques de Guatemala et de 



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287. Douglass, Earl, Neocene Lake beds of western Montana (thesis), Univ. Montana, 1899. 



288. New vertebrates from the Montana Tertiary: Annals Carnegie Mus., vol. 2, 1903, pp. 145-200. 



289. DowUng, D. B., General index to the Reports of progress, 1863-1884, Geol. Survey Canada, 1900. 



290. Geology of the west shore and islands of Lake Winnipeg: Ann. Kept. Geol. Survey Canada, new ser., 



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291. Exploration of Ekwan River, Sutton Mill Lakes, etc.: Ann. Rept. Geol. Survey Canada, new ser., vol. 



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292. Report on the Cascade coal basin, Alberta: Geol. Survey Canada, No. 949, 1907, p. 8. 



293. Drake, N. P., Stratigraphy of the Triassic formation of northwest Texas: Third Aim. Rept. Texas Geol. Survey, 



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294. Dumble, E. T., Notes on the geology of the valley of the middle Rio Grande: Bull. Geol. Soc. America, vol. 3, 



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295. Notes on geology of Sonora, Mexico: Trans. Am. Inst. Min. Eng., vol. 29, 1900, pp. 122-152. 



296. Notes on the geology of southeastern Arizona: Trans. Am. Inst. Min. Eng., vol. 31, 1902, pp. 710-713. 



297. Geology of southwestern Texas: Trans. Am. Inst. Min. Eng., vol. 33, 1903, pp. 913-987; (a) pp. 936-938, 



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298. Tertiary deposits of northeastern Mexico: Science, new ser., vol. 33, 1911, pp. 232-234. 



299. Dumble, E. T., Kennedy, WilliarQ, Hemdon, J. H., and Walker, J. B., Reports on the iron district of 



east Texas: Second Ann. Rept. Geol. Survey Texas, 1891, pp. 7-326. 



300. Dutton, C. E., Geology of the high plateaus of Utah: U. S. Geog. and Geol. Survey Rocky Mtn. Region, 1880, 



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301. Mount Taylor and the Zuni Plateau :> Sixth Ann. Rept. U. S. Geol. Survey, 1885; (a) pp. 106-198; (b) 



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302. Eastman, C. B., Devonic fishes of the New York formations: Mem. New York State Mus. No. 10, 1907, p. 10. 



303. Eldridge, G. H., Method of grouping the formations of the Middle Cretaceous: Am. Jour. Sci., 3d ser., vol. 38, 



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304. Anthracite-Crested Butte foHo (No. 9), Geol. Atlas U. S., U. S. Geol. Survey, 1894. 



305. EUs, B. W., Geology of northern New Brunswick: Rept. Progress for 1879-80, Geol. Survey Canada, 1881, pp. 



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306. Report on the Gaspe Peninsula: Rept. Progress for 1880-1882, Geol. Survey Canada, 1883, pp. 15-16 DD. 



307. Northern and eastern New Brunswick and north side of the Bay of Chaleurs: Rept. Progress for 1880- 



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308. Explorations and surveys in interior of Gaspe Peninsula: Rept. Progress for 1882-1884, Geol. Survey 



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309. Geological formations of eastern Albert and Westmorland counties. New Brunswick, and portions of 



Cumberland and Colchester counties. Nova Scotia: Ann. Rept. Geol. Survey Canada, new ser., vol. 1, 1886, 

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310. Report on a portion of the Eastern Townships: Ann. Rept, Geol. Survey Canada, new ser., vol. 2, 1887, 



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311. Geology of a portion of the province of Quebec: Ann. Rept. Geol. Survey Canada, new ser., vol. 3, 1889; 



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312. Stratigraphy of the Quebec group: Bull. Geol. Soc. America, vol. 1, 1890, pp. 453^68. 



313. Portion of the Province of Quebec, southwest sheet of "Eastern Townships": Ann. Rept. Geol. Survey 



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314. Geology of the Three Rivers map sheet: Ann. Rept. Geol. Survey Canada, new ser., vol. 11, 1901, p. 13 J. 



315. Charlotte County, New Brunswick: Ann. Rept. Geol. Survey Canada, new ser., vol. 15, 1903, pp. 151- 



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316. Graham Island, British Columbia: Ann. Rept. Geol. Survey Canada, new ser., vol. 16, 1906; (a) pp. 



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317. Ells, B. W., and Bailey, L. W., Lower Carboniferous belt of Albert and Westmorland counties, New Bruns- 



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318. Emerson, B. K., On the geology of Frobisher Bay: Appendix to Narrative of the second Arctic expedition 



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319. Geology of old Hampshire County, Massachusetts: Mon. U. S. Geol. Survey, vol. 29, 1898'; (a) p. 354. 



320. Emmons, S. F., Tertiaries of the Uinta Valley: U. S. Geol. Expl. 40th Par., vol. 2, 1877, pp. 307-310. 

 321. Geology and mining industry of Leadville, Colorado: Mon. U. S. Geol. Survey, vol. 12, 1886, p. 57; (a) 



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