196 



Barbarism, 152, 154 



Barrell, J., 47, 49, 50, 56, 67, 69, 110 



Beans, 154 



Bees, 90 



Beetles, 90 



Belgium, optimum temperature in, as 

 shown by death-rate, 167-169 



Bichat, M. F. X., 86 



Biochemists, 85, 95 



Biogenesis, history of, 89 



Biology, 82 



Bipedality, cause of, 129, 130 



Birds, evolution of, 127 

 first recorded, 111, 129 

 origin of, 111, 128, 145 

 toothed, 65, 129, frontispiece 



Blainville, D. de, 86 



Boleophthalmus, 120 



Brachiation, 140 



Brachiopods, 113 



Breaks, geologic, 70, 71 



Brontosaurus, 130 



Browne, Sir Thomas, 90 



Browsing mammals, origin of, 111 



Buffon, Comte de, 92 



Butterflies, 90 



Cacops, 125, 126 



California, agriculture of, 153 



deaths in, 158, 161, 164, 165 



Indians of, 152, 153, 154 



rainfall in, 187 



rate of growth of big trees in, 185, 

 186 



southern, climate of, 166 



storms in, 166 



Cambrian period, 46, 79, 111, 113, 118 

 Camels, 74, 136, 137, 178 

 Campbell, W. W., 11, 21 

 Canadian period, 76 

 Carbohydrates, 84 

 Carbon, 75, 102 



compounds, 100 



INDEX 



Carbon dioxide, 34, 35, 38, 44, 50, 51, 

 52, 54, 57, 102, 104, 105 



dioxide, as climate regulator, 52 



dioxide, in Archeozoic, 63 



dioxide, resupply of, through vol- 

 canoes, 52 



monoxide, 34, 35 

 Carbonic acid, 99 

 Cardan, G., 89 

 Carnivores, 136 



Cascadian revolution, 110, 111, 146 

 Catalysis, 104 

 Cells, 87, 94, 102, 105, 106 



potential immortality of, 98 

 Cenozoic era, 46, 65, 73, 74, 76, 79, 

 110, 111 



era, time ratio of, 69 



sediments, thickness of, 65, 67 

 Central America, 187, 188, 189 

 Cephalopods, 114, 115 

 Ceratopsia, 132 

 Cereals, 179 

 Cetacea, 115 

 Chaldeans, 181 

 Chalks, 58 

 Chamberlin, T. C., 21, 24, 25, 47, 51, 



116, 119 



Chamberlin and Moulton, on the nebu- 

 lar hypothesis, 12 



planetesimal hypothesis of, 13, 46 

 Chazyian period, 76 

 Chemical elements, essential to life, 



105 



Chimpanzee, 139, 140, 142 

 China, 179 

 Chinese, 181 

 Chlamydosaurus, 130 

 Chordates, evolution of, cause of, 116 



first recorded, 119 



origin of, according to Chamberlin, 



119 



Cincinnati uplift, 62 

 Cincinnatian period, 76 



