Index 869 



Atlas, 423, 423* 



Atom, 77, 78, 79,* 80, 81,* 82, 83, 



83,* 750 

 Atomic energy (see Atomi) 

 number, 78, 79* 

 theory {see Atom) 

 Atracheata, 109 

 Atrium, 328,* 477, 478*-481,* 490,* 



741* {see also Auricle) 

 Atrophy, 817 

 Attachment fiber, 65 

 Auditory, 394,* 398, 405, 424, 495, 505 

 AureHa, 290, 290* 

 Auricle, 311*-313,* 331-340, 332,* 



340,* 370,* 371,* 372, 401,* 



403, 430, 430,* 470,* 740* 



Australian region, 598 



Autocatalysis, 92, 94, 680 



A-utogamy, 817 



Autolysis, 817 



Autosome, 675,* 698 



Autosynthesis, 92, 93, 101 



Autotomy, 299, 304, 443, 576, 578 



Autotrophic, 168, 669 



Autumnal coloration {see Pigments) 



Auxin A and B, 240, 583, 768 



Auxospore, 154, 160 



Aves {see Birds) 



Avoiding reaction, 352,* 355, 359 



Axial, filament, 359 



gradient, 372, 373, 537 



skeleton, 423 

 Axiate organization, 373, 537 

 Axis, 372, 373, 537 

 Axon 47, 54, 54,* 501 



brush, 54* 

 Azotobacter, 651 



B 



Babesia, 534, 534,* 786 

 Back cross, 818 

 Bacon, Francis, 801 



Bacteria, 109, 120-122, 121,* 167-172, 

 250-256, 650, 659 

 and nitrogen fixation, 650,* 651, 664 

 pathogenic, 120, 122, 168, 171, 255, 

 659, 660 



Bacteriolysin, 520 

 Baer, Karl von, 803 

 Baeyer, 231 



Balance in Nature, 653,* 655 

 Balanoglossus, 326,* 327 

 Balantidium, 530, 532* 

 Baldness, 703 

 Band, dark and light, 52* 

 Barb, 406 



Bark {see Tissues, plant) 

 lice {see Insects) 



Barnacle, 318, 323,* 544 



Barrier, 595, 629 



Basal granule {see Paramecium) 



metabolism, 93 

 Basement membrane, 393 

 Basidiomycete, 109, 128,* 129, 167, 



177-183 {see also Mushroom, 



etc.) 

 Basidiospore, 128,* 129, 167, 178,* 



179-181, 182* 

 Basidium, 128,* 129, 167, 178,* 179- 



181, 182* 

 Basket star, 303 

 Bast fiber, 214 

 Bat, 340 

 Bausch, 31 

 Bean, garden or kidney, 143, 144,* 211- 



213 

 Beche-de-mer (trepang), 540 

 Bedbug, 558* {see also Insects) 

 Bee, 319, 398-408 



glue, 405 

 Beetles, 319, 563-565, 563,* 564* {see 



also Insects) 

 Behavior {see specific organisms and 



nervous equipments) 

 Eenthon, 112, 151 

 Beriberi, 474, 770* 

 Beroe, 291, 292,* 293 

 Beverages from plants, 264-266 

 Bile, 427,* 428, 429 

 Bihrubin, 493 

 Bills of birds, 728* 

 Binomial nomenclature, 819 

 Biochemical phenomena, 750-774 

 Bioelectric phenomena, 764 {see also 



Electricity) 



Biogenesis, 733, 735 

 Biogenetic, 442, 742 

 Biogeography, 24, 591, 736, 745 

 Biologists and their work, 800-806 

 Biology, 17 



applied, 775-791 



defined, 17 



history of, 800-806 



how to study, 19 



of higher plants, 219-248 



of man, 458-529 



subdivisions of, 24, 25 

 Bioluminescence 762 

 Bionomics, 620 



Biophysical phenomena, 750-774 

 Biotic, 658 



Birds, 339, 339,* 340, 340,* 574, 728* 

 Bivium, 302* 

 Black tongue, 772 

 Blackhead, 788 

 Bladder, 377 



air, 331, 332* 



