INDEX 



Acquired characters, question as to 



their transmissibility, 221-223. 

 Acquired vigor, does it count? 



263-269. 



Adami, Professor J. G., his studies 

 on disease and evolution, 304, 

 305, 306. 



Agar, Dr., his experiments, 224. 

 Algz, 81, 82, 86. 



Allen, Dr. E. J., his demonstration 

 of the correlaton between sun- 

 shine records and the quantity 

 of mackerel at Billingsgate, 80. 

 Allen, Glover M., his book on 



Whalebone Whales, 71. 

 quoted, 76, 77. 



Amazon ants, raids of the, 17-23. 

 " Anguillulid Nematodes," 175. 

 Anguillulid worms, 179. 

 Anguis fragilis, 167. 

 Anthony, Dr. R., French zoologist, 



288. 



Ants, Amazon, raids of the, 17-23. 

 Brown, 19, 20, 23. 

 maternal care of worker-, 272. 

 Mediterranean, 186. 

 white, shedding of wings of, 170. 

 Ants and bees, experimental work 



with, 7. 



Aphaenogaster barbartts, i&6 

 Apiary, large, pleasant impression 



of sound of, 106. 

 Armadillo, Hairy, 161. 

 Hybrid, 162. 

 Little, 159. 



Nine-banded, 158-159, 160, 161- 

 162. 



Aromatic compounds in various 



plants, 96-97. 



Art, before the dawn of, 278-286. 

 Aspergillus niger, 187. 

 Autotomy, 168-173 

 Autumn, characteristic sights of, 



ii3-"4. 



delight and quietness of, 111-112. 

 problems of the natural history 



of, 1 1 6. 



scientific interest of, 112-113. 

 tactics of, 116-118. 

 the withering and fall of the 



leaves, 114-115. 



" Auxetics " and " augmentors," 

 132. 



Balaena mysticetvs, 78 

 glacialis, 7 1 . 



Bataillon's method of fertilization 

 of frog's eggs, 140. 



Bateson, 232, 240. 



" Beagle," Voyage of the, quoted, 

 82, 93- 



Beavers, 271. 



Becquerel, M. Paul, his experi- 

 ments on seeds 177-182 



Beddard, Dr. F. E., on whales, 

 78. 



Bees, storing instinct in, 184, 185. 

 worker, maternal care of, 272. 



Beetles, Burying, limitation of their 

 instinct, 209. 



Before the dawn of art, 278-286. 



Bergson, Professor Henri, on in- 

 stinctive behavior, 210 

 on the resemblance between the 



317 



