Index 



375 



Huxley, 346 



Hybridization, heterogeneous, in 



sea urchins, 48 ff., 73 ff. ; in 



fishes, 51; in plants (Mendel's), 



230 ff. 

 Hydrolytic enzymes, action of, 



24; reversible action of, 24 ff. 

 Hypertonic solution, 99, iii fif. 



Imitation of cell structures by 

 colloids, 39 



ImmortaHty, of cancer cells, 30; 



, of somatic cells, 30 ff . ; of life in 

 general, 34 ff. 



Inheritance, of colour-blindness, 

 203, 204, 205; of e3''e pigment in 

 Drosophila, 204 ff.; of pigments, 

 248 ff . ; of acquired characters, 



337 ff- 

 Inhibition of regeneration in Bryo- 



phyllum, 162 ff. 

 Inhibition of sexual characters of 



opposite sex, in pheasants, 218; 



lack of in hermaphrodites, 219; 



in Bonellia, 226 

 Instincts, 10 ff., 253 ff.; sexual, 



198 ff. 

 Intersexualism, 221 

 Intestine, formation of, 130 ff. 

 Isoagglutinins, 66 ff., 92 

 Isolation of blastomeres, 136 ff. 



Jacoby, 352 

 Janda, V., 219 ff. 

 Jansky, 67 

 Janssens, 242 

 Jennings, H. S., 264 ff. 

 Jensen, 45 

 Joest, 46 



Johannsen, W., 42, 333 

 Jones, 352 

 Jost, 90 



Kammerer, P., 325, 337 ff. 



Kanitz, A., 290, 292, 296 



Kastle, J. H., 26 ff. 



Kellogg, V. L., 279 



Kelvin, 34 



King, W. O. R., 50, 247 



Klug, 351 



V. Knaffl, E., 106 



Knowlton, E. P., 292 



Kofoid, C. A., 143 

 V. Korosy, 300 

 Korschclt, 361 

 Krakatau, 21 

 Kraus, 54 ff. 

 Krogh, 292 

 Kryz, F., 335 

 Kupelwiescr, H., 75 



Lack of oxygen, influence on dis- 

 integration of tissue, 355 ff. 



Ladoff, S., 224 



Lamarck, 6 



Laminaria, 165 



Landois, L., 53 



Landsteiner, 66 



Lanice, 143 ff. 



Lankester, E. R., 41 



Leathcs, J. B., 63 



Leuccrna leucocephala, 37 



Levene, 351, 352 



Lewis, 183, 344, 364 



Light, influence on organ forma- 

 tion, in cav^e animals, 319 ff.; 

 in Proteus, 325; in Eudendrium^ 

 326. See also Heliotropism. 



Lillie, F. R., 80, ^2 ff., ^7 ff., 93, 

 134, 191, 218,292 



Lillie, R. S., loi, 107, no, 120 ff. 



Lipase, synthetic action of, 26 



Living and dead matter, specific 

 differences between, 14 ff. 



Lloyd, D. J., Ill 



Localization of Mcndclian charac- 

 ters in individual chromosomes, 

 243, 244 



Loeb, Leo, 30 ff., 45, 157, 170. 

 187 ff., 342 



Loevenhart, A. S., 26 ff. 



Lumbricus rubclltis, 46 



Lychnis dioica, 217 



Lycopodium, 93 



Lygcrus, 201 



Lymantria dispar, 220 



Lytnnccus, 142 



Lymphocytes, r61c of, 45 ff. 



Lyon, E. P., 134 ff. 



Macfadyen, A., 36 



Maeterlinck, 255 



Magnus, W., 60 



Maltasc, synthetic action of, 25 



