INDEX 



(Italicized page numbers and plate numbers indicate illustrations of the subject mentioned.) 



Abraxas glossularia, PI. 70. 



Acquired characters, 67. 



Acrira egina and gea, PI. 77. 



Acrieiifc, 132, 137, PI. 76, PL 77. 



Acronvcta alni and psi, PL 77. 



Adalia bipiinctata, PL bq. 



Adaptation, innate, 27; not explained by 

 the theory of the inheritance of parental 

 modification, 78. 



^Eginlifis rod f era, PL 82. 



Agassiz's cave fish, <?j. 



Aggressive coloration and resemblance, 125- 

 127; mimicry, 145. 



Alaska, former mild climate of, 62, 112. 



Alchemy, Intro, ix. 



Alg,e, 32, 36, 91, /'/. 21. 



Algiers, alluring color in lizard, 129. 



Allen, Grant colors of flowers, 162, 190. 



Allen, J. A.- variation in Florida birds, 9. 



Alluring colors and resemblances, 127-129. 



Altruism, 25, 176, 180, 182. 



Amauris echeria and niavius, PL 76. 



Amazon Valley butterflies, 51 ; leaf-cutting 

 ants and tree-hoppers, 137, PL 7,". 



Amblystoiua, tadpole, qS. 



" American Food and Game Fishes " (Jor- 

 dan and Evermann), PI. 48, PI. 58. 



Aniixba, inheritance of parental modifica- 

 tions, 68; reproduction, 68; simple or- 

 ganization, 91. 



Anatomy, comparative, 87, 88-96. 



Ancon sheep segregation, 65. 



"Animal Behaviour" (Lloyd Morgan), 190. 



'Animal Life" (Jordan and Kellogg), 62, 

 95, 190, 191. 



"Animal Life and Intelligence" (Llnyd 

 Morgan), 190. 



Antarctic continent, former existence of, 114. 



Antelope, confusing coloration, 148, PL Si ; 

 protective color, 120; signalling, 146, 

 PL Si. 



Antlers of deer, 106, 707, PL 43; of elk 

 correlation with ligamentum nuchc?, 

 35- 



Ants antlike spiders, 757, 7jv\ 145; 



mimicked by tree-hoppers, 137, PL 75; 



unpalatable, 137. 

 Apatitra iris, PL j6. 

 Ape related to Hominida:, 163; ear of 



Barbary ape, PL 94 ; nictitating mem- 

 brane. /'/. j6. 

 Apis in ell if era, PL 74. 

 Aplecta occitlta, P/.J^. 

 Apocyrtits, PL 7J. 

 Appendix, vermiform, man and orang, 166, 



PL 96. 



Aptery.v, vestigial wings, 94, PL jj . 

 Arbutus, trailing, 7. 154. 

 Archaopteryx lithographica, 109, /'/. ^. 

 Arctia caja, PL jo, PL 77. 

 Arctic fox, 126, 7^7. 

 Argus pheasant, PL 24. 

 Ariamnes atteiiuata, PL 64. 

 Aristoloi/tid sipho, 158, PL go. 

 Artificial selection, 28-31. 

 Asexual reproduction and inheritance of 



parental modifications, 71. 

 As/id rittata, var. nigra, PL 28. 

 "Astrolabe, Voyage de 1'," 145. 

 Attacus atlas, 143. 

 Attractiveness, criteria in choice in marriage, 



181, 182, 183. 

 Australasia fauna, 113; limits of fauna 



(map), 77j. 

 Avebury, Lord, color sense in insects, 



159 et seq., 190. 



Bacteria, rate of increase, 14. 



Bagworm, 21. 



Baldwin, J. Mark, 27. 



Bali Lomhok strait (map), HJ. 



Barnacle goose, 3,5 . goose barnacle, 3, 4, j ; 



sacculina, 184, 7^, /'/. 707. 

 Barriers to migration, 112. 

 Basilarcha (Liinenitis) Jisippits, 138, PI 



/6. 



Bastin, E. S., PI. 88. 

 Bat skeleton of wing, 92. 



193 



