

INDEX 



ADAPTATION (adaptation pheno- 

 mena) : meaning of term, 180; 

 with particularly peculiar modes 

 of life parasites and symbiotics 

 there arise peculiar animals, 

 new systematic species, genera, 

 and families, and even orders and 

 classes, 183 ff., 188-202 ; but no 

 types, since the entire change can 

 be recognized as retrogression of 

 a type, 183 ff. 



Age of sedimentary deposits : 

 significance in connection with 

 the theory of evolution, 18 ; 

 general results, 21. 



Algonkium = pre-Cambrian. 



Angiosperms (covered seeds) : first 

 certain traces in the Ceenozoic 

 formation, 60 ; further develop- 

 ment, 62 f. ; no connection 

 with other groups, 64 ; system- 

 atic classification, 125. 



Animal geography: separation pro- 

 duces local races and local 

 species, 171 ; complete isolation 

 and in- breeding, formation of 

 species, genera and families, 

 171 ff. ; or ' peculiar ' fauna, 

 174 ff. ; but no new types, 176. 



Animals are organisms possessing 

 consciousness, 108 f., 115 ; genetic 

 connection with plants (life with- 

 out consciousness) excluded, 116 ; 

 history of their evolution, 23-49 ; 

 systematic classification, 117 ff. 



Ant and Termite guests, 188 ff. 



BERNARD, CL., 91, 94. 



Biogenetic fundamental law, 217- 



228. 



Bumiiller, J., 28, 33. 

 Bunge, G. v., 91, 92, 101. 



CALAMARIACE^B (Primary Equise- 

 tae) : predecessors in the Devonian 

 formation (Proto-calamariacese), 

 54 ; differentiation of the groups, 

 67 f . ; retrogressive phenomena, 

 73. 



Cambrian formation : animal life, 

 23 ; plant life, 53. 



Carboniferous formation, 22, 28 ; 

 rich development of the plant 

 world, 55 ff. 



Catastrophic ( = creation) theory : 

 opinions of Cuvier and his 

 pupils, 9 ff. ; protest against, by 

 Lyell, Lamarck, and Geoffrey 

 St. Hilaire, 11 f. ; improbability 

 of, 15 f . 



Cirripedes as embryological ex- 

 amples, 205 ff. 



Club-mosses, fossil (Lepidodendron), 

 55, 56 ; extinction of, 60, 66. 



Convergence : meaning of term, 

 45 ; convergence phenomena in 

 animals, 45 ff. ; in plants, 71. 



Copepodse (Rudder-crabs, Cirre- 

 pods), example of graduated 

 retrogression, 186. 



