Manual of the botany of the northern United States - Gray, Asa, 1810 -1888 ([s.n.], 1856)

A manual of the botany of the northern United States, from New England to Wisconsin and south to Ohio and Pennsylvania inclusive, (the mosses and liverworts by Wm. S. Sullivant,) arranged according to the natural system - Gray, Asa, 1810 -1888 (J. Munroe, 1848)

Manual of the botany of the northern United States : including Virginia, Kentucky, and all east of the Mississippi - Gray, Asa, 1810 -1888 (Ivison, Phinney, 1863)

Manual of the botany of the northern United States : including the district east of the Mississippi and north of North Carolina and Tennessee - Coulter, John Merle, 1851 -1928 (American Book Co, 1889)

Manual of the botany of the northern United States : including the district east of the Mississippi, and north of North Carolina and Tennessee - Coulter, John Merle, 1851 -1928 (American Book Company, 1889)