AOALENA, house spider, 7. 



Acypia, grape-vine-moth, 160. 



Andromeda (A. ligustrina), singular 

 greeting to the bee, 126; interior 

 arrangement of flower, 12S ; re- 

 lease of the pollen, 129. 



Angraecum, orchid of Madagascar, 

 with nectary eleven inches long, 

 219. 



Ants, herding the aphides, 166; a 

 model honey-farm, 167. 



" Ant-holes," 61. 



Aphides, plant-lice, founders of the 

 feast, 165; herded by ants, 167. 



Apocyiuim, dogbane, 236. 



Aprophora, spume-bearer, 82. 



Arethusa bulbosa, orchid, 175. 



Argiope, field spider, 8. 



Aristolochias, 1 19. 



Aristotle, 23. 



Arum, wild : — Position of the an- 

 thers, 141 ; progressive stages of 

 change, 142. 



Asclepias cornuta, milkweed, 227. 



Asilus, "robber-fly," 8. 



Axell, a follower of Darwin, 116. 



Bees: —The drone of, 5; a counter- 

 part of clover ; dependence of 

 clover on, 117; manner of ap- 

 proach, 121; black-and-white 

 banded, 126 ; approach to the 

 blue- flag, 131 ; experiment with 

 the bumblebee, 209 ; his escape 

 from the flower, 210 ; manner of 

 cross-fertilizing, 212; manner of 

 conveying the pollen, 218; his dif- 

 ficulties with the milkweed flower, 



233 ; the cumbersome handicap, 



234 ; destroyed by the milkweed, 

 235. 



Beetles {Cicindela), tiger, 6S. 



Birds: — Swifts, 5 ; robin, 5 ; vireo, 5, 

 45 ; indigo, 5 ; chat, 5, 40 ; oriole, 

 5, 32; red -headed chippy; barn- 

 swallow, 6, 28, 39, 40 : cuckoo, 23; 

 "kow-bird"; cow black - bird ; 

 bunting, 27; song- sparrow, 30, 

 40 ; Maryland yellow - throat, 28, 

 45; Wilson's thrush; chewink, 32; 

 fly-catcher; bluebird; oven-bird; 

 cat - bird ; phcebe, 40 ; bobolink; 

 "reed-bird," 53 ; humming, 227. 



