Contribution to the Ichthyology of Mexico

Publication

New Crinoids from the Chicago Area

Annual Report of the Director to the Board of Trustees for the Year

On the Osteology of Nyctosaurus (Nyctodactylus), with Notes on American Pterosaurs Volume Fieldiana, Geology, Vol. 2, No. 3

On the Osteology of Nyctosaurus , With Notes on American Pterosaurs Volume Fieldiana, Geology, Vol.2, No.3

Publication, Volume 2

Publication, Volume 3