„ on denudation of the south of Scotland, [55]
Periodic Law, argument from, [96]
„ Prof. Mendelejeff on [96]
Periodic Law, Newlands on, [96]
„ Prof. Reynolds on, [96]
Planets, on their arrangement according to density, [25]
Polymerisation, argument from, [95]
„ Dr. Mills on, [95]
Pouillet, on rate of solar radiation, [2], [35]
Powell, Major J. W., on denudation of Uinta Mountains, [58]