. The clays and clay industry of New Jersey. Clay; Clay industries. PLATE Fig. 1. Prospecting for clay with an auger in the pines south of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ries, Heinrich, 1871-1951; Kümmel, Henry Barnard, 1867-; Knapp, George N. Trenton, N. J. , MacCrellish & Quigley, printers

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Keywords: ., bookcentury1900, bookdecade1900, bookpublishertrent, bookyear1904