—, lithographic, iii, 370.
—, rice, xxiv, 207.
— for drawing, a new mode of preparing, xiv, 373.
— covered with pumice, for removing rust, xv, 169.
— making, a discovery in, made, x, 193.f
— hangings, how protected from injury by dampness of walls, vi, 396.
Papyrus, made from plants, at Syracuse, xxvii, 80.
Paradoxides, J. Hall on, xxxiii, 139.f
Paragrèles in France, x, 196; xii, 398.
—, efficacy of, xiv, 37.