INDEX. 
—-+ -- —— 
A 
ABYSSINIANS, ii. 323, 330 
Acalephe, ii. 141 
Accelomi, ii. 148, 151 
Acrania, ii. 196, 198, 200, 204 
Acyttaria, ii. 51, 62 
Adaptation, i. 90, 156, 219 
——————- actual, i. 225, 231 
correlative, i. 241 
cumulative, i. 233 
direct, i. 225, 231 
divergent, i. 247 
————— indirect, i. 224, 227 
—_—_—_—— individual, i. 228 
———_—— irregular, i. 229 
monstrous, i. 229 
potential, i. 224, 227 
sexual, i. 230 
universal, i. 231 
—_————- unlimited, i. 249 
Agassiz, Louis, i. 61 
Agassiz’s conception of the universe, 
i. 65 
essay on classification, i. 61 
——— history of creation, i. 63 
history of development, 
i, 64 
idea of species, i. 65 
Albuminous bodies, i. 331 
Alge, ii. 81, 82, 83 
Alluvial system, ii. 15 
Altaians, ii. 309, 317 
Alternation of generations, i. 206 
Americans, ii. 309, 318. 
Amnion animals, ii. 204, 219 
Amniota, ii. 204, 219 
Ameebe, ii. 53, 279 
Ameeboidea, ii. 53 
Amphibia, ii. 209, 216 
Amphioxusg, ii. 198, 285 
Amphirrhina, ii. 203, 205 
Anamnionata, ii. 204 
Animal Plants, ii. 144 
Angiospermae, ii. 83, 111 
Annelida, ii. 133, 149, 151 
Anorgana, i. 5, 328 
Anorganology, i. 6 
Anthozoa, ii. 143 
Anthropocentric conception of the 
universe, i. 38 
Anthropoides, ii. 270, 275, 292 
Anthropolithie period, ii. 15, 17 
Anthropology, i. 7 
Anthropomorphism, i. 18, 66 
Ape-like men, ii. 293, 300 
Apes, ii. 241, 268, 270 
Arabians, ii. 323, 330 
Arachnida, ii. 180, 182 
Archelminthes, ii. 148 
Archezoa, ii. 132, 134 
Archigony, i. 183, 338 
Archilithic period, ii. 8, 14 
Arians, ii. 323, 331 
Aristotle, i. 55, 76 
Arthropoda, ii. 132 
Articulata, ii. 119 
Ascidia, ii. 152, 200 
Ascones, ii. 141 
Asterida, ii. 164, 166 
Atavism, i. 207 
Australians, ii. 308, 314 
Autogeny, i. 339 
B 
Bar, Cart Ernst, i. 109 
doctrine of filiation, i. 109 
—— theory of development, i. 294 
types of animals, i. 53; ii. 119 
Basques, ii. 322 
Bathybius, i. 184, 344; ii. 53 
Batrachians, ii. 204 
Bats, ii. 240, 261 
Beaked mammals, ii. 233, 239 
reptiles, ii. 224, 226 
Belief, i. 9; ii. 335 
Berbers, ii. 323, 330 
Biogenesis, fundamental law of, i. 
309; ii. 33 
aan ae 
