GEOLOGY, MINERALOGY AND PALEONTOLOGY OF ESSEX COUNTY, MASSACHUSETTS ...

THE PHYSICAL GEOGRAPHY 

GEOLOGY, MINERALOGY 

AND PALEONTOLOGY

OF 

ESSEX COUNTY, MASSACHUSETTS

BY

JOHN HENRY SEARS

Curator of Geology, Mineralogy,and Botany

AT THE PEABODY MuSEUM, 

Salem, Mass

SALEM, MASS. 

PUBLISHED BY THE ESSEX INSTITUTE 

1905

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