Final programmatic environmental impact statement vegetation treatments using aminopyralid, fluroxypyr, and rimsulfuron on Bureau of Land Management lands in 17 western states
The contemporary and subfossil moss assemblages of a high Arctic upland southern Piper Pass northern Ellesmere Island, N.W.T
Plants, seeds, and currents in the West Indies and Azores; the results of investigations carried out in those regions between 1906 and 1914
