Heidinger, Roy C.
First Record of the Northern Studfish, Fundulus catenatus (Cyprinodontidae, Pisces), in Illinois
Heidinger, Roy C.
First Record of the Northern Studfish, Fundulus catenatus (Cyprinodontidae, Pisces), in Illinois
Recent Advances in Spectroscopy* Author: Michelson, A.A.
The Relation of the State Academy of Science to the Natural History Surrounding the Chicago Academy of Sciences Author: Baker, F.C.
Recent Advances in Spectroscopy* Author: Michelson, A.A.