Concretions from the Champlain clays of the Connecticut Valley.
By: By J.M. Arms Sheldon. With one hundred and sixty illustrations by Katherine Peirson Ramsay, L.R. Martin, and F.S. and M.E. Allan.
Published: 1900
Place of publication: Boston
Language: eng
Number of pages: 45
Subjects: Concretions; Geology, Stratigraphic -- Pleistocene; Geology -- Connecticut River Valley