XX.—The Upper Coal Measures West of the Alleghany Mountains
Published in Annals of The Lyceum of Natural History of New York, in 1874, in volume 10, issue 1, pages 226-252
Date published:1874-02
Published in Annals of The Lyceum of Natural History of New York, in 1874, in volume 10, issue 1, pages 226-252
Date published:1874-02