Notes on specimens of Psilophytes and associated fossils colelcted by D.H.S. Williams in the [chenning] shales of Ithaca, New York
Letter, 16 June 1881
Note on fossil plants from the Carboniferous of Newfoundland
On Rhizocorps in the Palaeozoic revival
On spines and spore cases in the Erian rocks
Manuscript notes
Notes, fossil specimens
Notes, specimens
Notes
Notes, Clarke’s woods