Asa Gray Correspondence. 1841-1891 (inclusive); Senders N, 1841-1891Asa Gray, George V. (George Valentine) Nash, Hugh M. NeislerHäftad, 2021295 kr
Physiographical Sketch of That Portion of the Rocky Mountain Range ?at the Head Waters of South Clear Creek and East of Middle Park? With an Enumeration of the Plants Collected in This District in the Summer Months of 1861 /by C.C. Parry.Asa Gray, C. C. ParryHäftad, 2021180 kr
Thomas Potts James Letters to Asa Gray, 1855-1882 (inclusive)Thomas Potts James, Asa GrayInbunden, 2021431 kr
Musci and Hepaticae of the United States East of the Mississippi RiverWilliam Starling Sullivant, Asa Gray, George EngelmannHäftad, 2021193 kr
George Bentham Letters to Asa Gray, 1839-1883 (inclusive); Sender Bentham, GeorgeGeorge Bentham, Asa GrayHäftad, 2021388 kr
Thomas Potts James Letters to Asa Gray, 1855-1882 (inclusive)Thomas Potts James, Asa GrayHäftad, 2021311 kr
Elias Durand Letters to Asa Gray, 1846-1873 (inclusive); Sender Durand, EliasElias Durand, Asa GrayHäftad, 2021262 kr