Twining, A. C., method of resolving equations of the third and fourth degrees, ix, 86.

—, observations on meteors, xi, 184.

—, on the growth of timber, xxiv, 391.

—, on the position and height of some Auroral arches and streamers, xxxii, 217.

—, on the Aurora of September, 1839, xxxviii, 376.

—, supernumerary rainbows, xxxii, 227.

—, halos in January, 1835, xxxii, 229.

—, on the appearance, nature and cause of the meteors of November 13, 1833, in reply to D. Olmsted, xxvi, 320.f

—, ibid, Nov. 1834, xxvii, 339.

—, suggestions on the solar eclipse of July, 1842, xlii, 395.