. Bulletin - New York State Museum. Science. Plate 23 To face p. 77. 1 Manganite, Ilefeld, Hartz, Germany .zsr^Tirjiirs**^*-!^ ; â â r Ce-wt;»»\«*evi>. 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 New York State Museum; New York State Museum. Albany : New York State Education Dept

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1887