256 



INDEX 



Pasteur, 161 et teq. 

 Philosopher's stone, 160 

 Phosphorescence, 250 

 Pouchet, 169 

 Proteins, 114 



Proto-elements, 54, 64, 76 

 Protozoa, 190 



Radio-activity, 17, 33, 47, 57, 226 



Radium, 41, 226 



Ramsay, 50, 59, 60 



Rayleigh, 50 



Redi, 165, 166 



Richter, 173 



Ringer, 143 



Saturation, Atomic, 132 



Schafer, 163, 175, 236, 242, 246 



Sherrington, 227 



Soddv, 43, 60 



Solution aggregate, 138, 140 



Spallanzani, 165, 167 



Spectroscopy, 41, 52, 73 



Spontaneous generation, 162 et seq. 



Starling, 232 



Stars, Classification of, 74 



Sunlight, 113, 178 



Syphilis, 216 



Thales, 163 

 Toxins, 204 

 Transformers, 44, 177, 183, 224, 



243 

 Tuberculosis, 206 



Uranium, 41, 47, 226 



Valency, Atomic, 78 et seq., 88 

 Valency, Molecular, 126 

 Valisneri, 165, 166 

 Van Helmont, 163 

 Voltaire, 169 



X-rays, 38, 47, 61, 77 



