—, new species of Delphinula, xxxviii, 193.
—, shells obtained by dredging, with account of new species, xxxviii, 396; xxxix, 373.
Alabama, sketches of geology of, W. S. Porter, xiii, 77.
—, ibid, Greene Co., R. W. Withers, xxiv, 187.
—, ibid, near Centreville, xlviii, 399.
—, the galt in, S. G. Morton, xxviii, 277.
—, tertiary of, xxv, 417, 419.
—, coal in, xxvi, 190.
Aldini, J., obituary notice of, xxvii, 405.
Alexander, S., letter on the comet of 1843, xlv, 195.