INDEX 



605 



Trophoplasm, 430 



Tschermak, nj , 356, 382, 383 



Tuberculosis, 283 



Tulase, 271 



Turner, Sir William, on telegonv, 

 154; on transmission of acquired 

 characters, 195 ; on haemophilia, 

 273 ; on abnormalities, 287 



Uncertainties in inheritance, 295 

 Unfit, multiplication of, 533 

 Unicellular organisms, multiplica- 

 tion in, 29 ; hereditary relation in, 

 31 ; transmission in, 185 

 Unit characters, 373 

 Units, theoretical conception of ele- 

 mentary, 91 



Variability, 100, 268 



Variation, study of, 11; discon- 

 tinuous, 82 ; causes of, 100, 103, 

 104; and modifications, 176; in- 

 dependent, resembling reversions, 

 128 ; inherited and independent, 

 269 ; theory of, 397, SU 



Varieties, " ever-sporting," 95 



Varigny, H. de, on telegony, 147 



Vernon, Dr. H. M., experiments on 

 hybridisation of sea-urchins, 117, 

 493 ; variation, 310 



Vestigial structures, 127 



Vicinism, 133 



Villar, S., 147 



Virchow, Prof., on climatic changes, 

 211, 257 



Voigt, experiments on Planarian 

 worm, 36 



Voisin, 235 



Vries, H. de, 18 ; on reversion, 133, 

 136, 141 ; mutations, 83, 90; 

 Pangen theory, 199, 424 



"Wallace, A. R., on Lamarckism, 172 

 "Waltzing mice, 364 



Wart-hog, African, habits of, 182 



Weismann, on reversion, 122, 129, 

 14 ; on telegony, 148 ; on 

 transmission of acquired charac- 

 ters, 168 ; on Brown-Sequard's 

 results, 233 ; theory of con- 

 tinuity of the germ-plasm, 38, 

 414, 423 ; summary, 439 ; ger- 

 minal selection, 458 



Weismannism, Mendelism and, -ifji 



Weldon, Prof., on the law of ances- 

 tral inheritance, 320, 321, 329 



Westphal, 232 



Whitman, Prof. C. O., 402 



Wilder, H. H., 211 



Wilson, Dr. George, 271 



Wilson, Prof. E. B., on number of 

 chromosomes, 46, 47, 49 ; on 

 amphimixis, 50, 164, 431 ; nu- 

 clear division, 436 ; on Protenor 

 belfragi, 487, 497 



Winkler, experiments of, 65 



Wolff, C. F., 419 



Wollaston, 23 



" Wonder horses," 86 



Wounds, 225 



Xenia, 159, 160 



Young birds, experiments with, 21 

 Yule, G. Udny, 15 ; on regression, 

 321 ; on Mendel's and Galton's 

 laws, 325, 328 

 Yung, experiments on sex-deter- 

 mination, 204, 489 



Zebra and horse, hybrids, 138 

 Ziegler, Prof. Ernst, on acquired 

 characters, 182, 259 ; trans- 

 missibility of nervous disorders. 

 282 

 — Prof. H. E., on chromosomes, 

 103, 299 ; dwindling of parts, 

 202 ; determination of sex, 498 



