—, action of second surfaces of transparent plates on, D. Brewster, xxiii, 28.f
—, solar, curious effect of, xii, 164.
—, —, as compared with that of the moon and fixed stars, xvii, 362.
—, —, chemical action of, see above.
—, zodiacal, see [Zodiacal.]
Lights, northern, see [Aurora Borealis.]
Light-houses, ix, 199.
—, lighted by means of lime, T. Drummond, xxi, 366.
Lighting by gas, see [Gas.]
— of apartments, new method in Venice, x, 385.