—, —, in Virginia, i, 63.
—, —, in Sicily, viii, 205.
Hebrew words, orthography of, J. W. Gibbs, xxiv, 87.
Heckewelder, John, labors of, xxxi, 64, 66.
Height, on the measurement of, by boiling water, xxxvii, 19.
—, mean, of the continents above the sea, xlix, 397.
— of Lake Erie and various places in western New York, C. Dewey, xxxiii, 122.
— of places in Ohio, Michigan, Pennsylvania and New York, C. Whittlesey, xlv, 12.
— — in Wisconsin, I. A. Lapham, xlvi, 258.
Hematite, see [Iron Ore.]