INDEX 



Achromatin . . .89 

 Acquired characters . 136 

 Adaptations, 133, 188, 222 



232 



^Ether . . . .227 

 Agnosticism . . . 205 

 Albatrosses, breeding time 



of . . . .184 

 Alpine plants, leaves of 133 



,, bright flowers of . 137 

 Ammonites, rapid changes 



in .... 48 

 Amoeba . . . .132 

 Amphibians, the first . 46 

 Amphimixis . . . 123 

 Analogy, use and abuse 



of . . . .276 

 Animism . . . 199 



Archeopteryx . . 52 



Armour, use of .80 



Astrospheres . . .89 

 Atavism . . . 121 



Atomic hypothesis . 227 



Baldwin, Prof. Mark on 



Organic Selection . 139 

 Bateson, W. on " sports " 



98 

 Bateson, W. on Mendel's 



law 124n 



Bees, the first . . 56 

 Binnet, on Psychic Life 



221 n 



Biophores . . 87n 



Birds, the first . . 52 



,, of tropical regions 137 



,, song of . . 167 



Bonney, Prof., on Eozoon 



16 



Brachiopoda, origin of . 24 

 ,, development of 22, 29 

 Bruche, " elementary or- 

 ganisms "of . .87 

 Bumpus, Prof., on varia- 

 tion . . . .127 

 Butler, S., on heredity . 105 

 Butterflies, the first . 56 

 Cayeux, Dr., on Radio- 



larians . . .18 

 Centrosomes . . 89, 118 

 Centrospheres . . 89 

 Cephalopoda, the first 23, 30 

 "Chance," the meaning 



of . . . .246 

 Chromosomes . . .89 

 Colloids . . . .235 

 Concepts . . . 209 

 Condylarthra . . .58 



295 



