400 1 _
‡a
Dana, James Dwight.
‡t
Manual of Geology.] A Text-book of Geology. Designed for schools, etc. [An abridgment of the author's "Manual of Geology."
400 1 _
‡a
Dana, James Dwight.
‡t
Text-book of geology
400 1 _
‡a
Dana, James Dwight.
‡t
Text-book of geology designed for schools and colleges