The North American Sylva; or, a description of the forest trees of the United States, Canada, and Nova Scotia. Not described in the work of F. Andrew Michaux, and containing all the forest trees discovered in the rocky mountains, the territory of Oregon, down to the shores of the Pacific, and into the confines of California, as well as in various parts of the United States. Illustrated by 121 colored plates. By Thomas Nuttall, F. L. S. member of the American Philosophical Society, and of the Academy of Natural Sciences of Philadelphia, etc. etc. etc. Being the fourth volume of Michaux and Nuttall's North American sylva
por: Michaux, Andrew