INDEX 



1505 



ductless glands, 18, 281, 290 

 dwarfing of tadpoles, 1222 



Ear, 253 



early organisms, 849 



ecology, 2, 42 



plant, 154, 1286 



of plant reproduction, 184 



of the flower, 186 

 economic psychology, 1407 

 economics, 1402 



and geography, 1398 

 ectoderm, 737 

 educability, 999 

 education — 



biological, 1355 



biological views, 1336 



biologic versus mechanistic, 1349 



emotional, 1340 



evolutionary, plea for, 1363 



for life, 1343 



for happiness, 1343 



Froebel's methods, 1344 



in animals, 554 



occupational, 1357 



practical, 1345 



vital methods, 1343 

 educational psychology, 1234 

 eel's migratory impulse, 73 

 effectors, 693 



egg- 

 albumin, 13 



cell, 717 

 eggs— 



of parasites, 153 



resting, 58 



summer, 58 



winter, 58 

 elan vital, 1462 

 electric organ, 421 

 electromagnetic radiations, 409 

 embryological evidence for evolution, 



920 

 embryonic development, 26 

 embryonic layers, 689 

 embryonic resemblances in birds and 



reptiles, 882 

 embryonic structures, transient, 924 

 embryology, 4 



modern trends, 743 

 emergence of variations, 1248 

 emergences, 1104 

 encystations, 57 

 endoderm, 737 

 endomixis, 476 

 endocrinal glands, 869 



energy transfer, 13, 15 

 enregistration, 27 



of past, 899 

 entomology, medical, 1220 

 environment, 982, 1242 



and organism, 1254 



adjustment to, 1256 

 enzymes, 11 



epiphytes, 166 » 



epiphytic relations, 137 

 epiphytic shelter-associations, 138 

 epithelial tissue, 691 

 epizoic animals, 137 

 epizoic relations, 137 

 epochs of world construction, 871 

 esthetic valuation in hens, 1026 

 esthetics, 1125 

 etiology, 5 

 eudrama, 14 19 

 eugamics, 1327 

 eugenics, 301 



aim of, 584 



and eugamics 1327 



and sterilisation, 1327 



and war, 1319 



case for, 1320 



difficulties of, 1328 



nature and nurture in, 991 

 eugenic families, 1324 

 eugenic ideal, 1252 

 eugenic ideal in school, 584 

 eugenic instruction, 587 

 eugenic marriages, 1330 

 eugenic superiorities, 1324 

 eugenists, 1108 

 evils — 



origin of, 1429 



treatment of, 1431 

 excretion, biology of, 285, 353 

 extermination of animals, 224 

 external surface of organisms, 1068 

 eye, structure of, 242 

 Evolution — 



and education, 1363 



and nutrition, 1085 



cosmic, 1 103 



defined, 1105 

 emergence in, 1104 



evidences of organic, 915 



illustrations of, 1082 



integrative, 117 



isolation factor in, 1030 



of climbing plants, 171 



of faunas, 96 



of man, 1156 



of protozoa, 939 



VOL. II 



DDD 



