Scans of Aven Nelson collecting field books. This section dates from 1897 and contains records 37..., Manuscript originals available at the University of Wyoming.
Scans of Aven Nelson collecting field books. This section dates from 1897 and contains records 37..., 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.
