INDEX 



All numbers refer to pages, heavy type indicating illustrations. 



Abnormalities, 436 



Absinthe, 159 



Absorbent cotton, 228 



Acacia Senegal, Gum Arabic Tree 



Accommodation versus competi- 

 tion, 454 



Acer Saccharum, Sugar-maple 



AceracecE, Maple Family 



Acetic Acid, 15G 



Achene, 351, 386 



Aconite, 182, 189, 190 



Aconitine, 190 



Aconituin Napellus, Monkshood 



Acorn, morphology, 375 



Acorus Calamus, Sweet-flag 



Acquired adaptations, 441, 443; 

 characters, 443, 445 



Acquirement, permitted by nat- 

 ural selection, 450; versus selec- 

 tion, 452 



Acrid juice, 357 



Actcea spicata, Baneberry 



Adaptation, 428, 572 



Adaptations, 431; acquired, 441, 

 443; characteristic, 442; in- 

 dividual, 442; origin of, 442; 

 selected, 446; sudden, 457, 459 



Adder-tongue, 532, 533, 558 



Adder-tongue Family: adder- 

 tongue, 532, 533, 558; grape- 

 fern, 532, 533. 



Adhere, 365 



Adhesion of organs, 365 



Aeration, 530 



^Estivation, 349; convolute, 369; 

 imbricate, 349, 354; open, 371; 

 plicate, 381; pUcate-convolute, 

 381; valvate, 349, 354 



Agaricacerp, Gill-mushroom Fam- 



ily 



Agurir.us campeslris, Field Mush- 

 room 



Agriculture, primitive centers, 122, 



123 

 Air-cushions, 284 

 Air-plant, 508 

 Albumen, 316, 351, 352 

 Albuminous seeds, 355 

 Alcohol, 156 

 Alcoholic beverages, 156 

 Alcoholic fermentation, 495 

 Alga Subdivision, 395, 396 

 Algce, Seaweed Subdivision 

 Algai, as gonidia, 509; in general, 



491; of hot springs, 475 

 Algo-fungul air-plants, 509 

 Alkaloids, 150, 177, 181 

 Allium Cepa, Onion 

 Allspice, 128, 130, 177; oil, 130, 



297 

 Almond, 35, 42, 120, 124, 167, 363; 



kernel, 114; oil, 296; philopena, 



365 

 Alpine Rose, 378 

 Alternate, floral organs, 350, 354; 



leaves, 342, 352 

 Alternation, of floral organs, 350; 



of generations, 485, 512 

 Althcea officinalis, Marshmallow 

 Amadou, 239, 241 

 Amanita musairia, Fly-amanita 



phallnides. Death-cup 

 Amarantacece, Amaranth Familj- 

 Amaranth Family, 378 

 A maryllidacece, Amaryllis Family 

 Amaryllis Family, 397 

 Amber, 288 



Amentaceous inflorescence, 373 

 Aments, 373 

 American, aspen, 264; food-plants, 



124; elm, 259; laurels, 416, 417; 



sycamore, 267, 268; wood- 



anemony, 205 

 Ammonia, 33 



577 



