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Synopsis of the Flora of the Laramie Group. (Extract from the Sixth Annual Report of the U. S. Geol. Surv.) By Lester F. Ward. Washington, Government. 4°

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Science  23 Sep 1887:
Vol. ns-10, Issue 242, pp. 150-151
DOI: 10.1126/science.ns-10.242.150

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