. Annual report of the Regents. New York State Museum; Science. Plate 13 To face p. 702. Diagram after Johnson, showing effect of lime sulfate on rate of setting of natural and Portland cement. 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; University of the State of New York. Board of Regents. Albany : J. B. Lyon, State Printer

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Keywords: ., bookauthorne, bookcentury1800, bookdecade1880, booksubjectscience