HENRY B. KÜMMEL, State Geologist

The Clays and Clay Industry

of New Jersey

BY

HEINRICH RIES

AND

HENRY B. KÜMMEL

ASSISTED BY

GEORGE N. KNAPP

Volume VI of the Final Report of the State Geologist

TRENTON, N. J.:

MACCRELLISH & QUIGLEY, BOOK AND JOB PRINTERS.

PART 1.-CLAY AND ITS PROPERTIES.

CHAPTER I. CLAY AND ITS MODE of Occurrence,

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