320 WHA T IS LIFE 



Physical chemistry 250, 252-256 



surface contacts 64 



Picton ij-Q 



Pirsson, Louis V 205 



Planck, Max 87, 120, 298, 299 



Planck's constant 119^ 298, 300 



value of 119 



Plaskett, John Stanley 79 



Pluecker, Julius 30 



Plutarch I95 



Poincare, Jules Henri I75 



Polar substances, properties of 92 



Pollaci 33 



Poor, Charles Lane 29 



Porter, C. W 296 



Positive charges, how acquired 83 



electron 85, 108, 119 



Poynting, J. H 54^ 238 



Problem of science, most important 7 



Proof 264, 265 



mathematical, of the Gaskell theory of life 267-269 



of a theory 26, 36 



of the Gaskell theory of life 39, 272, 279, 280 



demanded 266, 267 



standard of 30, 31 



Proteins 54 



molecular weight of 295 



Proton 119 



Protoplasm 48, 60, 274, 298 



Prout 104 



Prout's hjTDothesis 104 



Psychic properties of organisms 50 



origin of 153, 164, 165 



Psychology and quantitative methods 169-173 



Pythagoras 31 



Qualitative differences, how caused 141 



Quantitative methods of measurements 31-34 



and psychology 169-173 



Quantum 94, 96, 298 



theory 87, 95, 99. 120, 298-300 



Radiant energy 298 



