—, invention of stereotyping, xvii, 161.
—, stereotype, original papers by C. Colden and B. Franklin on, xxiv, 319.
— designs, new mode of, vii, 191.
—, anastatic, xlix, 401.
— press, improvements in, by J. I. Wells, iii, 311.f
— —, inking machine, Wood's, xxiii, 103.f
— — for the blind, v, 385.
Prisons, Society for the Amelioration of, iii, 374.
[Prizes] offered by the Royal Society of London, xxv, 412.
Prize given by the Royal Society to J. F. W. Herschel, for a paper on double stars, xxv, 412.