262 



INITIATIVE IN EVOLUTION 



Roux, 19, 145. 



Russell, The Hon. Bertrand, 142. 

 Russell, E. S. On Lamarck's 

 theory, 20. 



Saint-Hilaire, Geoffrey, 10. 

 Sapajou, Brown, papillary ridges 



on hand and foot of, 165. 

 Schafer's " Text Book of Physi- 

 ology," 219, 220, 226. 

 Scratch reflex ; of the dog, 249. 



Of the cat, 253. 



Selous, 92, 115, 118. 

 Sherrington, Professor, 218, 226 

 229, 238, 244, 245, 249, 250,' 

 251, 253, 254. 

 Skin, Human : Distribution of 

 Touch Corpuscles, 219. 



Distribution of Touch Spots, 



219. 



Distribution of Cold and 



Warmth Sensations, 220. 



Distribution of Cold and 



Warmth Spots, 220, 221. 



Stimuli of pressure, 222, 226- 



230. 



Stimuli of cold, 226-230. 



Stimuli of pain, 226-230. 



-Stimuli of warmth, 226-230. 

 Sloth, Two-toed (Cholcepus didac- 



tylus) ; Hair-patterns of, 122, 



123. 

 Smith, Dr. E. Barclay, 201, 216. 

 Sole, skin of, 147-156. 



Of Man, 155, 156. 



Spencer, Herbert, 28, 177. 



Squirrel, epidermis of, 152. 



Papillary ridges on hand and 



foo't of, 162, 166. 

 Flexures of hand and foot of, 



175. 

 Squirrel-monkey, papillary ridges 



on foot of, 161. 



Flexures of foot of, 176. 



Starling, Professor, 227, 244. 

 On Facilitation, 240, 246. 



Still-born children, subcutaneous 

 bursae of two, 183, 184. 



Stimuli, 30, 31. 



Of touch, 219, 226-230. 



Of cold, 220, 226-230. 



Of warmth, 220, 226-230. 



Of pressure, 222, 226-230. 



Stout, Professor, 252. 



Summary of conclusions arrived at 

 257, 258. 



Thomson, Professor J. Arthur, 20 

 22, 23, 24, 25, 28, 29, 34. 



On Heredity, 22. 



Touch Corpuscles, 219, 227, 228. 

 Touch spots, 219, 225, 227, 228. 

 Tschermak, 11. 



Ungulates, even-toed, 86-91. 

 odd-toed, 74-85. 



Vernon, Dr. : "Variations in Animals 



and Plants," 28. 

 Vulpine phalanger, flexures of foot 



of, 173, 175. 



Wallace, Professor, 2, 39, 40, 46, 



145. 

 Weber's Law, 222. 

 Weismann, 9, 11, 14, 16, 17, 18, 



21, 22, 24, 25, 26, 86, 139, 177, 



210, 245, 255. 



Twelve points, 15, 16. 



Weismannism, 17, 18, 19, 26, 145. 



Welton, Mr., 142. 



Whipple, Miss Inez (Mrs. Wilder 



Harris) 154, 162. 

 Criticism of " The Direction 



of Hair in Animals and Man," 



137-139. 

 Wolff, 189 : " Law of Bone Trans- 

 formation," 205. 



Young, Arthur, 143. 



Zebra : Comparisons between horse 

 and, 83, 84. 





