ibid of September, 1831, 218;
hurricanes of Asiatic Seas, 220;
law of atmospheric circulation, 222.
—, on columnar whirlwinds excited by fires, xxxvi, 50.
—, Raleigh's Tyfoon, xxxvi, 59.
—, meteorological register at New York city, for 1838 and 1839, with the mean results for the last seven years, xxxviii, 323.
—, meteorological observations at St. John's, Newfoundland, and at Canton, China, xxxviii, 265.
—, on the tornado of New Brunswick, and its whirling action, xli, 69.f
—, on the storm of Dec. 15, 1839, and general deductions on the nature of storms, xlii, 112.f
—, on the Providence tornado, with the evidence of its whirling action, xliii, 263.f