310 



INDEX 



Lenard, 147, 280 

 Leverrier, 262 

 Lewis, G. N., no 

 Light, corpuscular theory of, 

 220 ; velocity of, 252, 254, 



255 

 Lindeman, 65 



Linder, 117 



Lines of force, 151, 160, 227 et 



seq. 

 Liquefaction of gases, 8, 41 et 



seq. 

 Lockyer, Sir N., 57, 282 

 Lodge, Sir O., 108, no, 251 

 Lorentz, 4, 149, 213, 218, 234, 



239, 253 

 Low temperature research, 41 



et seq. 

 Lucretius, 217 

 Lyr^, /3, 275 



Mach, 7, 18 



M'Clung, R. K., 230 



M'Lennan, 179 



Magnetic deflection, 142, 145, 

 169 



Magnets, equilibrium of float- 

 ing, 214 



Mars, temperature of the planet, 

 299 



Mass, 22, 25, 35, 143 etseq., 234, 

 255 ; conservation of, 23 ; 

 variation of, with velocity, 

 23, 38 ; and weight, 25 



Masson, Orme, no 



Mathematics, 31 



Matter, see mass, 

 and energy, 17, 256 



Maxwell, Clerk, 6, 80, 153, 160, 

 162, 223, 224, 277, 293 



Mayer, 214, 215 



Mechanics, 7, 16 



Mendeleefl", 212, 216 



Mercuiy, the planet, 258 ; 

 temperature of the planet, 



294 

 Metallic conduction, \iZ et seq. 

 Metals, structure of, 71, 84, 90 

 Metaphysics, 12, 14, 22, 151, 



210 

 Michelson, 252 

 Microscopic study of metals, 8, 



69, 72, 84, 89 

 Milikan, 144, 193 

 Milky way, 290 

 Miller, L., no 

 Minkowski, 3, 254, 257 

 Molecular structure, dimensions 



of, 207 et seq. 

 theory, 3, 102, 104, 204 et seq. 

 Momentum, 255 ; conservation 



of, 37; of the aether, 153 

 Morley, 252 

 Moseley, H. G. J., 241, 242 



Nebula, 265, 299, 300 ; spiral, 



289 

 Nebular hypothesis, 299 

 Neptune, temperature of the 



planet, 299 

 Neville, F. H., 74, 82, 83, 87 

 Newton, Sir Isaac, frontispiece, 



3, 24, 25, 218, 220, 221, 257, 



258, 263 

 NichoUs, 294 

 Nitrogen, 202, 243 

 Nova, 291 et seq. 

 Nuclei, helium, 202 ; hydrogen, 



201, 202, 242 



Oden, n9 

 Ohm's law, 112, 128 

 Olszewski, 51 

 Onnes, K., 57, 61, 65 

 Osmond, 89 



