Aven Nelson's field book dated 1910, containing records 9311 through 9882. This book also contain..., Manuscript originals available at the University of Wyoming., , ,
Scans of Leslie N. Goodding collecting field book. This section dates from 1903 and contains reco..., Manuscript originals available at the University of Wyoming.
Aven Nelson's field book dated 1925 to 1930, containing records 10163 through 10785. This book ac..., Manuscript originals available at the University of Wyoming.
Scans of Aven Nelson collecting field books. This section dates from 1898 and contains records 42..., Manuscript originals available at the University of Wyoming.
Scans of Aven Nelson collection field books. This section dates from 1898 and contains records 42..., Manuscript originals available at the University of Wyoming.
Aven Nelson's field book dated 1907 to 1908. It also contains records from 1906. Observations wer..., Manuscript originals available at the University of Wyoming.
Scans of Aven Nelson collection field books. This section dates from 1894-1895 and contains a ser..., Some of the samples were collected by George Cordiner., Manuscript originals available at the University of Wyoming.
