A Text-book of Geology: For Use in Universities, Colleges, Schools of Science, Etc., and for the General Reader, Parts 1-2

A Text-book of Geology: For Use in Universities, Colleges, Schools of Science, Etc., and for the General Reader. Part I. Physical Geology, Volume 2

A Text-book of Geology: For Use in Universities, Colleges, Schools of Science, Etc., and for the General Reader, Parts 1-2

Physical geology, by Louis V. Pirsson... Pt.2. Historical geology, by Charles Schuchert

A Text-book of Geology: For Use in Universities, Colleges, Schools of Science, Etc., and for the General Reader, Volume 1

Introductory Geology for Use in Universities, Colleges, Schools of Science, Etc: And for the General Reader. Part I, Physical Geology, by Louis V. Pirsson ... Part II, Outlines of Historical Geology, by Charles Schuchert

A Text-book of Geology: For Use in Universities, Colleges, Schools of Science, Etc., and for the General Reader, Volume 1

A Text-book of Geology: For Use in Universities, Colleges, Schools of Science, Etc., and for the General Reader. Part I. Physical Geology, Parts 1-2

A Text-book of Geology for Use in Universities: Colleges, Schools of Science, Etc. and for the General Reader, Part 2

A Text-book of Geology: Physical geology

A Text-book of Geology: For Use in Universities, Colleges, Schools of Science, Etc., and for the General Reader, Volume 0

Physical geology, by Louis V. Pirsson... Pt.2. Historical geology, by Charles Schuchert

A Text-book of Geology: For Use in Universities, Colleges, Schools of Science, Etc., and for the General Reader, Volume 1

A Synopsis of American Fossil Brachiopoda Including Bibliography and Synonymy

A Synopsis of American Fossil Brachiopoda Including Bibliography and Synonymy

Historical Geology

On the Lower Devonic and Ontaric Formations of Maryland

Revision of Paleozoic Stelleroidea with Special Reference to North American Asteroidea

On the Faunal Provinces of the Middle Devonic of America and the Devonic Coral Sub-provinces of Russian: With Two Paleographic Maps

A Lower Cambrian Edrioasterid, Stromatocystites Walcotti: (with One Plate)