328 



LECTURES ON BIOLOGY 



Death's-head moth, 162, 165 



Death, what is, 214 



Deluge, 84, 293 



Desert animals, 161 



Determinant, 303 



Devonian system, 107 



Dilina tilice, 202 



Dimorphism, sexual, 286 



Dioncea, 66 



Diplozoon paradoxum, 287 



Dipnoi, 38, 107 



Dipterocarpaceans, 178 



Directive body, 294, 300 



Dog, host of Tcenia, 263 ; ecliinococcus, 



262. 



Domestication of animals, 143 

 Dominant character (in crossing), 317 

 Driesch, 309, 312 

 Driver-ants, 46 

 Drosera, 65 

 Dry-coma, 36 

 Du Bois Reymond, 59 

 Duckmole, 117 

 Duck-mussel, 132, 287 

 Dujardin, 221 

 Dusch, 96 



Echidna, 117 ; aculeata, 281 



Echinodermata, 127, 276 



Echinus, 298 



Ectocarpus siliculosis, 233 



Ectoplasm, 213 



Eel, 178 



Egg-cells, 116 



Ehrenberg, 95, 221 



Eimer, 169, 192 



Elaps corallinus, 165 



Electric organs of ray and eel, 178 



Elementary species, 208 



Elephant, 151 



Embryo, development of, 119 



Empedocles, 5 



Encystus, 255 



Endoplasm, 213 



Engelmann, 188 



Entomostraca, 133 



Eocene strata, 113 



Ephebogenesis, 298 



Ephemeridae, 274 



Ephippium, 264 



Ephyra, 260 

 Epilepsy, 186 

 Epistalis, 221 

 Equatorial plane, 82, 293 

 Equidae, 114 

 Erber, 41 



Erythrolampsus, 165 

 Eudendrium ramosum, 193 

 Eugaster, 172 

 Euglypha alveolata, 219 

 Eunuchs, 148 

 Eyed hawk-moth, 202 



Fasciola hepatica, 154 



Fechner, 91 



Ferns, 194, 200 



Fertility, 151, 153, 224 



Fertilization, 117, 156, 229, 270, 289, -295 



Feuerbach, 2 



Fischer, Emil, 51, 186 



Fish-heart, 120 



Fittonia, 67 



Flat-fishes, 122 



Flying-fishes, 15 



Flying-membrane. 25 



Flying- squirrel, 177 



Food, influence of, 198 



Foraniinifera, 217 



Friedenthal, 136 



Frog, 290 



Funaria hygromctrica, 200 



Fungi, 65 



Fungus-gardens of ants, 184 



Fusulina, 218 



Gadus (cglefinus, 15 



Galen, 7 



Galilei, 7 



Gall-apples, 267 ; gall-insects, 267 



Galle, 136 



Gardening-ants, 184 



Gasterosteus acnleatus, 276 



Gastrula, 118 



Gecko, 19 



Gemmation, 257 



Geometridse, 165 



Geophagus brachyttrus, 278 



Germ- cells, 246 ; formation of, 282 ; 



germ-path, 306 ; germ-zone, 292 

 ' Gid,' 262 



