338 



INDEX 



Aristotle, 8, 267 "-268. 



Artemia, 32. 



Artery : Crayfish, 202-203 ; Earthworm, 



171-174; Honeybee, 242-243. 

 Arthrobranchiae, 204. 

 Arthropoda, 6, 7, 225-233. 

 Ascaris lumbricoides, 32, 160-163, 161*, 



165, 168, 171, 176, 277. 

 Asexual reproduction, 97. 

 Assimilation, 13, 14, 46, 49, 171. 

 Association neuron, 179. 

 Aster, 30*, 31. 

 Astral rays, 30*, 31. 

 Attachment cell, 255*. 

 Autotomy, 220. 

 Avoiding reaction : Euglena, 87, 88 ; 



Paramecium, 73-74*, 76. 



Bacteria, 29, 46, 66, 81, 259. 



Baer, Karl E. von, 271, 272*. 



Balantidium coli, 82. 



Balfour, Francis M., 271, 272. 



Barnacle, 225. 



Barrier, 278. 



Basal disk, 117, 118*, 123. 



Basipodite, 197, 198. 



Bateson, W., 290. 



Beaver, 300. 



Bee: carpenter, 264; leaf cutting, 264; 



mining, 265-266; social, 266; soli- 

 tary, 264-266. 

 Bee glue, 256. 

 Bee hive : cleaning, 257 ; guarding, 257- 



258; number of individuals in, 258; 



ventilating, 257. 

 Bee louse, 259. 

 Bee milk, 253. 

 Bee moth, 258-259. 

 Bee scouts, 258. 

 Bee tree, 258. 

 Bees and flowers, 262-264. 

 Bees in general, 260-266. 

 Beetle, 301. 

 Behavior: Ameba, 53-58; Crayfish, 221- 



224 ; Earthworm, 186-189 '> Euglena, 87 ; 



Hydra, 127-132; Paramecium, 73-79. 

 Beneden, Van, 36. 

 Bichat, 271. 



Bilateral symmetry, 4, 5, 6, 7, 158, 186. 

 Binary division, 96, 112: Ameba, 51*, 



52*: Euglena, 83*, 87; Hydra. 133*; 



Biobiotic fauna, 277. 

 Biochemist, 23. 

 Biogenetic law, 228-232. 

 Biology, i. 

 Biophor, 288. 



Biramous appendage, 196*. 

 Birds and bees, 259. 

 Blastocoel, 109*, 185. 

 Blastoderm, no: Crayfish, 215; Honey- 

 bee, 252. 



Blastomere, 108, 109*. 

 Blastophore, 184. 

 Blastopore, 185*, 186. 

 Blastula, 108, 109*, no, 229: Eartl 



worm, 185*; Grantia, 149, 150*; 



Hydra, 118*, 137. 

 Blood, in: Crayfish, 201-202; Eartl 



worm, 171, 185*; Honeybee, 242. 

 Bloodvessels, in: Crayfish, 195*, 202; 



Earthworm, 172^175 ; Honeyt 



241*, 242. 



Body cavity (see Ccelom). 

 Body wall, 4, 5: Ascaris, 162*; 



worm, 1 66*, 168. 

 Bombus, 266. 

 Bones, 101. 

 Botany, i. 

 Bouton, 235*, 247*. 

 Brachiopoda, 9. 

 Brain : Crayfish, 195*, 205 ; Eartln 



1 68*, 177*; Honeybee, 244*; 



naria, 154*, 156. 

 Branchial chamber, 204. 

 Branchial filaments, 204. 

 Branchiata, 225. 

 Branchiocardiac canals, 203. 

 Branchiocardiac grooves, 195. 

 Branchiostegite, 195. 

 Braula caca 259. 



Breeding habits, Crayfish, 211-214 

 Breeding season, Earthworm, 182. 

 Brown, 34. 

 Bryozoa, 5, 7. 

 Buccal pouch, 169. 

 Budding, 15, 277: Grantia, 148; Hydra, 



118*, 133-134; Protozoa, 80; sponj 



152. 

 Bumblebee, 262, 266; guest, 297; 



orchid, 262, 263*. 

 Butterfly, 279, 301. 



Calciferous glands, 169-170 



