Geology of the igneous rocks of Essex County, Massachusetts
By: by Charles H. Clapp.
Series: Geological Survey bulletin -- 704
Publisher: Govt. Print. Off.
Published: 1921
Place of publication: Washington
Language: eng
Number of pages: 132
Subjects: Rocks, Igneous -- Massachusetts -- Essex County.; Geology -- Massachusetts -- Essex County.; Petrology -- Massachusetts -- Essex County.
Notes: Maps on two folded plates (plates 1 and 2) and one folded chart inserted behind p. 132.

Includes bibliographical references and index.