Matter, constitution of, 305; discontinuity of, 308 Mendelejeff, 154
Mercurous compounds, constitu- tion of, 223; formulæ deter- mined by specific heat, 135 Mercury, density of, 67, 121; specific heat of vapour, 122 Methyl, 100, 273; carbylamine, 236; cyanide, 236; oxide chlorhydrate, 231, 250 Meyer, Lothar, 163, 167 Mitscherlich, 56
Molecular combinations, 248; diameters, 320; dissymmetry, 301; heats, 130; symmetry, 300; volatilities, 136 Molecular volumes of liquids, 189; of solids, 194
Molecules, integral and element- ary, 38; mean velocity of, 316; number in unit volume of gases, 322
Monatomic gases and vapours,
NASCENT state, 208 Naumann, 115
Neutrality, permanence in mu- tual decomposition of salts, 13 Nicklès, 249
Nitrogen, atomicity, 227; binox- ide, Dalton on, 23; chloride, 210; constitution of acids of, 241; substitution derivatives, 219
ODLING, 90, 199, 203
Organo-metallic radicals, ato- micity, 271
Oxygen, atomicity, 218, 231 Ozone, 119
PERIODIC Law, 158, 163, 170 Peroxides, constitution of, 219,
SALTS, constitution of, 83; dou- ble salts, 253, 334; hydrated, formulæ of, 181; permanence of neutrality on mutual de- composition, 13 Schelling, 306
'Series of masses' of Richter, 15 Sesquioxides, constitution of, 222; formulæ of, 61, 197 Silicon, atomicity of, 220; specific heat, 127
Specific heat, 52; table of, 124; abnormal, 127; of gases under constant volume, 121; of liquids, 129 Stas, 51
Sulphur, density, 68, 119; varia- tions in atomicity, 231
energy of molecular motion, 315
Tetratomic gases, 71
Thomson, 28, 64
Thomson, Sir W., on molecular motion, 324; on vortex motion, 328
Titanium, atomicity, 220 Trichlorhydrin, isomers of, 285 Trivalent radicals, 203 Troost, 102, 116
Tungsten, variations in atomicity of, 233
Types, 85, 198, 260; condensed, 89, 199
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