_Page, C. G._, movements on the surface of water produced by the vibration of glass, xxx, 192. ----, echo in Virginia, xxxvi, 174. ----, new electrical instruments, xxvi, 110.^f ----, method of increasing shocks with J. Henry's apparatus for obtaining sparks and shocks from the calorimotor, xxxi, 137.^f ----, iron, lead and other metals, a substitute for copper in galvanic apparatus, xxxii, 197. ----, on the use of the dynamic multiplier, xxxii, 354.^f ----, musical tones from magnets, xxxii, 396; xxxiii, 118; xlviii, 401. ----, electro-magnetic apparatus and experiments, xxxiii, 190.^f ----, ---- - ---- experiments on the application of electro-magnetism as a moving power, xxxiii, 118, 190^f; xxxv, 106. ----, rotary multiplier, or astatic galvanometer, xxxiii, 376.^f ----, new form of electrepeter, xxxiii, 377.^f ----, new magnetic electrical machine of great power, with two parallel horse-shoe magnets and two straight rotating armatures, with experimental researches, xxxiv, 163.^f ----, ibid, fusion of iron filings by, xxxiv, 169. ----, compound electro-magnets for the magnetic electrical spark, shock and decomposition, xxxiv, 364. ----, magneto-electric multiplier convertible into an electro-magnetic engine, xxxiv, 368.^f ----, magneto-electric and electro-magnetic apparatus, xxxv, 252.^f ----, magnetic electrepeter and electrotome to be used with flat spirals, xxxv, 112.^f ----, compound electro-magnet and electrotome, xxxv, 253.^f ----, circular galvanometers, xxxv, 259.^f ----, revolving armature machine, xxxv, 262^f; xxxvi, 350.^f ----, reciprocating armature engine, xxxv, 263.^f ----, vibrating armature engine, xxxv, 267.^f ----, double helix for inducing magnetism, xxxv, 261.^f ----, on the benefit of fresh immersion in galvanic batteries, xxxvi, 137.^f ----, the galvanoscope, a means of detecting the failure of water in steam boilers, xxxvi, 141.^f ----, observations on electricity, xxxvi, 353. ----, magneto-electric multiplier, xxxvii, 275.^f ----, an improved form of Saxton's magneto-electric machine, xlviii, 392. ----, new electro-magnetic machine, xlix, 131.^f ----, new axial galvanometer, xlix, 136.^f ----, double axial reciprocating engine, xlix, 139.^f ----, entomological cabinet of, for sale, xxxix, 211. ----, mode of preserving Lepidoptera, xlvii, 131. _Paine, M._, Medical Commentaries, notice of, xxxix, 209. _Paine, R. T._, on barometric minima of Feb. 16-19, 1842, xlii, 403. ----, on the solar eclipse of July 8, 1842, xlii, 175. Paint, fine scarlet, for the pallet, xvi, 174. ----, a new green, for artists, xxviii, 148. ----, use of alumina with, for the pallet, xvi, 173. ---- Rock, Virginia, i, 67.