INDEX 



60 1 



Intracellular pangenesis, De Vries' 



theory of, 457 

 Intra-organismal selection, 460 

 Intra-uterine contagion, 219 

 Ireland, Dr., 535 



Irishmen, Americanisation of, 215 

 Isolation, 536 

 Issakowitch, 491 



Jaeger's theory, 408, 41 1 

 Jelly-fish, symmetry of common, 



177 

 Jenkin, Prof. Fleeming, 372 

 Johannsen, Prof., experiments on 



" pure lines," 383 

 Jordan, Prof. D. S., 533 



Kant, 167 



Kanthack, A. A., 283, 297 



Karma, 435 



Katabolism, 70 



Keller, Prof., 99 



Kiener, 146 



Klebs, 273, 491 



Laburnum hybrid, 18 



— Adam's, 116 



Lamarck on intercrossing, 103 

 Lamarckism, 172 

 Lamarck's laws, 170 

 Lane, Dr. Arbuthnot, 209 



— C. H., on dogs, 147 



Lang, experiments with snails, 364 



Lankester, E. Ray, 16, 253, 303, 

 406, 407 ; on Lamarckian position, 

 170, 207 



Lanugo, 130 



Leprosy, 260 



hiyia Lapponica, hereditary rela- 

 tions in, 361 



Lint, Van, 492 



Lock, R. H., 16, 310, 497 



Loeb, Prof., experiments on fertili- 

 sation, 55, 65, 431 



Lucas, Prosper, 9, 67, 108, 254, 289 



Lundstrom, 229 



McClung, 496, 498 



McCracken, Miss, 361 



Macfarlane, Prof. J. M., on plant- 

 hybrids, 1 1 1 



Mackenzie, Dr. Leslie, 262, 303 



Mairet, 276 



Maize, Mendelian phenomena in, 

 358-60 



Malformations of parts, 289 



Malsen, von, 491 



Mammae, supernumerary, 129 



Man, alleged telegony in, 145 ; 

 proportion of male and female 

 births in, 504 



Mantegazza, 224 



Marchal, experiments on insects, 28 



Marchant, 85 



Mare, the case of Lord Morton's, 144 



Marr, Mr., of Tarves, t,jj 



Marshall, Prof. Milnes, 322 



Martius, 257, 265, 271, 290, 303 



Material basis of inheritance, 430 



Maternal impressions, 152, 161 



Maturation of germ-cells, 45-9, 59, 

 496 



— and amphimixis, 439 



Mayer, A. G., on Pseudoclytia, 87-9 

 Medical arguments as to inheritance 



of acquired characteristics, 219 

 Medusoids, variation in, 140 

 Mendel, Gregor Johann, 336 ; Men- 

 del's law, T,T,j ; his experiments, 

 'i'iJ ; theoretical interpretation, 

 343 ; theory summarised, 347 ; 

 elaborations of, 351 ; discovery 

 in relation to other conclusions, 

 367 ; practical application, 375 

 Mendelian inheritance, 84 ; phe- 

 nomena, 134 



— and Galtonian theories com- 

 pared, 333-4 



Merogony, experiments on, 420 



Metabolism, 70 



Metaphysical theories of heredity, 



399 

 Mice, experiments on, 224 ; hy- 



