Report of the United States Geological Survey of the territories. F.V. Hayden, United States geologist in charge ... [Final reports or monographs. vol. I]-III, V-XIII.

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Wild medicinal plants of the United States,by Alice Henkel.

no.89 (1906)

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian, by Nathaniel Lord Britton and Addison Brown. The descriptive text chiefly prepared by Britton, with the assistance of specialists in several groups; the figures also drawn under his supervision.

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