Gray's school and field book of botany : consisting of "First lessons in botany" and "Field, forest, and garden botany" bound in one volume.

by Gray, Asa, 1810-1888
Published 1869

Gray's manual of botany largely rewritten and expanded by Merritt Lyndon Fernald ; with assistance of specialists in some groups ; corrections supplied by R.C. Rollins.

by Gray, Asa, 1810-1888
Published 1950