INDEX 



465 



Finsen's light and tumors, 60 



Fischer, 433 



Fish and oxygen, 54 



Fishes, heart in, 137 



Fixateur, 379 



Flagella, 76, 126 



Flagellates, movement, 76 



structure of, 110 

 Flame-cells, 147 

 Fleas, 332, 345 

 Flemming, 95, 102 

 Flies, parasitic, 343 

 Floating matter of Tyndall, 28 

 Flowers, mechanical stimulation 



by insects, 44 

 Fcetus, 211 

 Food, 83 



stimulating influence of, 48 

 Foot, 457 

 Freckles, 60 

 Freezing, effects of, 38 

 Fungi and force of gravity, 64 



GALTON, 238, 254 

 Galton's theory of stirp, 255 

 Galvanotropism, 60 

 Gametes, 186, 206 

 Gasteropoda, 341 

 Gastrula, 222 

 Gay, 323 

 Gemmation, 181 

 Gemmini, 206 

 Gemmules of Darwin, 252 

 Generation, spontaneous, 21 

 Geology, 303 

 Geotropism, 63 

 Germ plasm, 204 



of Nageli, 258 



of Weismann, 260 

 Germinal cells, 183 



differentiation of, from so- 

 matic cells, 119 

 in animals, 203 



disc, 224 

 Gills, 138, 144 

 Glossina, 244, 361 

 Goethe, 284 

 Gonads, 197 

 Gonocytes. 197 

 Graafian follicles, 214 

 Grafting, 420 



30 



Grafting in plants, 438 

 Gravity, effect on living tissues, 



63 



Growth, 83 

 Guthrie on grafting, 426 



HABITUATION, 374 

 Haeckel, 235 



Haffkine's cholera serum, 399 

 Haller, 213 

 Hammen, 212 

 Hanes, 457, 458 

 Haptophores, 381 

 Hare-lip, formation of, 240 

 Harrison on grafting, 436 



on growth of tissue in vitro, 



326, 457, 458 

 Hartsoeker, 214 

 Harvest bug. 351 

 Harvey, William, 211 

 Harvey's law, 28 

 Hearing, development of, 161 

 Heart, batrachian type of, 141 



development of, 137, 238 

 Heat. See Temperature. 



stimulation, response to, 37 

 Hektoen, 323 

 Heliotropism, 54 

 Helotism, 331 

 Hemoglobin, 135 

 Hemolysins, 317 

 Hemolytic serum, 379 

 Hemophilia, transmission of, 265 

 Henking on sex determination, 



244 



Hensen on sex determination, 243 

 Hereditary memory, 170 

 Heredity, 169, 249 

 Hermaphroditism, 189, 201 

 Herpetomonas, 338 

 Herrick, 164 



on consciousness, 175 



windows of, 157 

 Herrick's types of reflex circuits, 



154 



Hertwig, 49, 53 

 Heterochromosomes, 245 

 Heteromorphosis, 405 

 Heterotype mitosis, 206 

 Heterozygous, 269 

 Histology, 93 



