MICHAUX, FRANÇOIS ANDRÉ. The North American Sylva; or a Description of the Forest Trees of the United States, Canada, and Nova Scotia... Philadelphia, 1854. 3 vols. Fourth American issue. 156 hand-colored engraved plates. McPhail 24d -- NUTTALL, THOMAS. The North American Sylva... Phildelphia, 1854. 3 vols. Fourth(?) issue. 121 hand-colored lithographed plates. Nissen BBI 1458. Together 6 vols., 8vo, 269 x 160 mm., uniformly bound in publisher's half green morocco gilt, extremities rubbed; some scattered pale foxing to text and plates.