INDEX. 



PAGE 



Absorption, law of, for corpus- 

 cles 72 

 Actinium, radio-activity of 130 

 Air, radio-activity of 133 

 Alchemist, argument of the 



ancient 138 



Alpha- rays, energy of 106 



Alpha-rays identical with pos- 

 itive ions 105 

 Alkaline-earths, relations of 31 

 Argon 36 

 Asterium 208 

 Atmosphere, rare gases of 36 

 Atmospheric electricity 239 

 Atom, current definition of 10 

 Atoms, latest list of 17 

 Atom, relation of its charge to 



its mass 62 



Atom, a complex system of 



corpuscles 152 



Atomic volumes, relation of, 



to atomic weight 23 



Atomic disintegration ex- 

 plained 169 et seq. 

 Atomic synthesis 243 

 Aurora Borealis, the cause of 238 



Becquerel, Henri 81 



Beta-rays, identity with cor- 

 puscles 108 



Calcium, dissociation of, in the 



sun 204 



Cathode rays, how developed 67 



PAGE 



Celestial dissociation 193 et seq. 



Celestial dissociation, bearing 

 of radio-activity on 205 



Chemical effect caused by 

 corpuscles . 70 



Chemical effect of Becquerel 

 rays 100 



Chemical union explained as 

 electrical union 167 



Comets' tails and their ex- 

 planation 234 



Compound, definition of 8 et seq. 



Condensations, corpuscular 73 



Conductivity of a gas, how it 

 may be increased 47 



Corpuscles and beta-rays com- 

 pared 108 



Corpuscle a constituent of all 

 bodies 151 



Corpuscle, electrical charge on 44 



Corpuscles deflected by mag- 

 netic force 57 



Corpuscles emitted by metals 

 under ultra-violet light 54 



Corpuscle, factors of 54 et seq. 



Corpuscles from a hot wire 52 



Corpuscles in cathode rays 



67 et seq. 



Corpuscle, its relation to an 

 atom 151 



Corpuscle, .mass of, how deter- 

 mined 65 



Corpuscle, power to penetrate 

 matter 72 



(259) 



