—, notice of a new trilobite, Ceraurus crosotus, xliv, 346f; xlv, 222.f
—, Isotelus megistus, a new trilobite, xlii, 366.f
Lockwood, M. B., variation of the magnetic needle at Providence, R. I., xliv, 314.
Locust, seventeen year, habits of, xiii, 224.
—, — —, notice of, S. P. Hildreth, xviii, 47.f
—, — —, remarks on, D. Thomas, xxi, 188.
Locusts in China, xxxi, 193.
Lodoicea sechellarum, notice of, J. E. Teschemacher, xxxvii, 396.
Logan, murder of the family of, xxxi, 11.
Logarithmic tables, corrections in Hassler's, xxii, 181.