Harris, W. S., utility of lightning conductors on ships, xxi, 347.
—, meteorological observations at Plymouth, xliii, 369.
Harris, T. W., North American Sphinges, xxxvi, 282.
—, Report on Insects injurious to vegetation, noticed, xliii, 386.
Hariz, Europe, notices of, T. G. Clemson, xix, 105.f
Haskins, R. W., examination of the theory of a resisting medium in space, xxxiii, 1.
—, Astronomy of, noticed, xli, 389.
Hassler, F. R., methods and plans of, in the survey of the coast of the United States, xvi, 225.
—, repeating theodolite, description of, C. Wilkes, U.S.N., xvi, 252.f
Hats, manufacture of, x, 193.