Monograph of the Gastropoda of the Cincinnati Group - 1874
The column of Heterocrinus heterodactylus - 1874
Lichenocrinus tuberculatus - 1874
Glyptocrinus fornshelli - 1874
Glyptocrinus shaffer - 1875
Heterocrinus isodactylus - 1875
The square crinoid column - 1875