272 



INDEX 



THOMSON, 146, 197. 

 Thumb prints, 38. 

 THURY, 198. 

 Tineola, 83. 

 Toes, crippled, 87. 



extra, 69, 178. 



webbed, 69. 

 Toenails, absent, 69. 



extra, 69. 

 Tomato, 129. 

 Total potency, 179. 

 TOWER, 52, 55, 108. 

 TOYAMA, 129. 

 Training, 2. 

 Traits, human, 231. 

 Treasury of Human Inheritance, 



246. 



Trees deformed by wind, 88. 

 Triangle of life, 1. 

 Trihybrids, 140. 

 Trilobites, 71. 

 Trimmed ears of dogs, 88. 

 Trotting habit, 129. 



TSCHERMAK, VON, 124, 129. 



Tuberculosis, 38. 

 Tuttle, Elizabeth, 260. 

 Twins, 201. 

 Two-celled fruit, 129. 

 TYNDALL, 6. 



Uniformity factor, 164, 171. 

 Unit character, 61. 

 Urosalpinx, 47. 



Variability, relative, 47. 

 Variation, abnormal, 40. 



continuous, 40. 



convergent, 150. 



definite, 39. 



discontinuous, 41, 69. 



fluctuating, 43. 



fortuitous, 39. 



germinal, 40. 



graduated, 52. 



harmful, 39. 



hereditary, 41. 



indefinite, 39. 



indifferent, 39. 



integral, 52. 



morphological, 38. 



multiple, 39. 



non-hereditary, 41. 



normal, 40. 



orthogenetic, 39. 



physiological, 38. 



psychological, 38. 



quantitative, 41. 



qualitative, 41. 



single, 39. 



somatic, 40. 



useful, 39. 

 Varieties, 62, 72. 

 Vasectomy, 255. 

 Vermiform appendix, 150. 

 Vestigial structures, 149. 

 VILMORIN, 155. 

 Viola, 37. 

 Vitalism, 82. 

 Volta Bureau, 246. 

 Voltaire, 260. 



VRIES, DE, 56, 59, 62, 64, 67, 71, 

 124, 129, 154, 155. 



WALTER, 48, 173, 183. 

 Waltzing habit, 129. 

 War, 258. 

 Wart-hog, 91. 



and toads, 87. 

 asps, 210. 



Weakling babies, 260. 

 Webbed toes, 69. 

 Weismann, 7, 10, 55, 77, 78; 



81, 84, 86-88, 94, 95, 123, 



241. 



Wheat, 129, 152, 186, 224. 

 WHYMPER, 254. 



WlEDERSHEIM, 87. 



WILSON, 34, 35, 207, 208. 

 Wing absent, 69. 

 WINSHIP, 228. 



WOLTERECK, 53. 



Wright, Seth, 67. 



Wrinkled kernel, 129, 134, 177. 



X chromosome, 207. 



Y chromosome, 209. 

 Yellow mice, 203. 



peas, 134. 

 YUNG, 200. 



Zygote, 24. 



