INDEX 



Abnormal abdomen, 94 



Acquired characters, 4, 149, 164, 

 204, 219 



Adaptation, 14, 59; process and 

 result, 60; adjustment of, 62; 

 process of, 62; and natural 

 selection, 114; and Lamarck- 

 ian theory, 135 



Adjustment, need for, 197 



Agar, W. E., 157 



Agglutinins, 223 



Albino, 64, 203 



Alcohol, 203, 205 



Alcoholism, 146 



Alexander, J., 81, 97 



Alimentary tract, 90 



Altitude, 19; effect on blood, 19; 

 effect on environment, 49 



Amblystoma pundatum, 38 



Animals, and organic environ- 

 ment, 20; responses of, 186 



Ant-eater, 134 



Ants, 69 



Appendage, pentadactyl, 217 



Ascaris, 78 



Autocatalysis, 13, 14, 81 



Autonomy, 48, 178 



Babcock, E. B., 58 

 Bacteria, 28 

 Baldwin, J. M., 116 

 Barnes, W., 42 

 Bateson, W., 26, 53 

 3eebe, W., 69 



Bees, bumble-, 187; honey-, 32, 



187 

 Belief, in science, 109 

 Bessey, C. E., 26 

 Boas, J. E. v., 168 

 BoUey, H. L., 158 

 Bones, 168; development of , 166; 



sesamoid, 168 

 Borodin, N. A., 161 

 Boveri, T., 78 

 Brain, 184 

 Bridges, C. B., 81 

 Butterflies, 61, 95, 119, 180 



Camels, 165 



Camponotus macilentuSt 70 



Carbon dioxide, 36 



Catalysis, 12 



Caterpillars, 49 



Cave animals, 59 



Cell, organization of, 28 



Centrifuging, 79 



Centro-epigenesis, 139 



Cephalochordata, 166 



Change, in genes, 96; founda- 

 tions of, 147; cumulative, 174, 

 205, 207 



Characters, acquired, 63, 98, 

 158, 204, 219; addition of, 74; 

 complexity of, 215; degree of 

 development, 73; hereditary, 

 67; indifferent, and selection, 

 117, 118; modification of, 74; 

 new, 174; non-adaptive, 61; 

 origin of, 61; stability of, 154 



229 



