Geology topics
Publications and source records attributed to Robert Ridgway.
This publication contains palæontology and ornithology reports for the Geological Exploration of the Fortieth Parallel.
Table of Contents I.----An account of the various publications relating to the travels of Lewis and Clarke, with a commentary on the zoological results of their expedition. By Dr. Elliott Coues, U.S.A. II.---Notice of a very large Goniatite from eastern Kansas. By F.B. Meek III.--Fossil orthoptera from the Rocky Mountajn tertiaries. By Samuel H. Scudder IV.--Studies of the American Falconidae: Monograph of the Polybori. By Robert Ridgway