Grove's voltaic battery, xxxviii, 116.

— — —, experiments with, S. F. B. Morse, xlv, 390.f

— — —, on the use of carbon in, B. Silliman, Jr., xliii, 393; xliv, 180.f

Groves of evergreens, their value near gardens, &c., xxii, 158.

Growth of wheat, on the acceleration of, G. W. Hall, xxxi, 345.

— of timber, xxiv, 391.

Guaco, notice of, xxii, 182.

—, medical virtues of, confirmed, W. R. Johnson, xxvii, 171.

—, remedy for hydrophobia, W. R. Johnson, xxiv, 279.

—, note on, xxiv, 388.