—, apparatus for experiments on inflection and interference of, E. S. Snell, xlix, 26.f
—, latent, J. W. Draper, xliv, 202.
— lines seen at regular intervals, a new property, D. Brewster, xxxiv, 20.
—, magnetic influence of the violet ray of, xviii, 171.
—, — — of the solar rays, xiii, 188.
—, on the deflection of, xviii, 176.
—, monochromatic, for microscopic observations, xiii, 190.
—, oxy-hydrogen, for light-houses, improvement in, by use of sulphate of lime, xxviii, 355.
—, a new kind of polarity in homogeneous, D. Brewster, xxxv, 292.
—, polarization of, by reflection, D. Brewster, xxii, 277.f