368 



INDEX 



Auricles, Clam, 144 ; Frog, 193 



Autonomic nervous system, 208, 215 



Autotomy, 103 



Aves, 159 



Axial filament, 49 



Axial skeleton, 175 



Axone, 96, 214 



Axolotl, 151 



B 



Bacteria, description, 12, 13 ; labora- 

 tory, 253 



Balanoglossus (see Dolichoglossus) 



Basal disc, Hydra, 58, 60, 67 



Basipodite, 100 



Basitarsus, 126 



Bats, 161 



Bee, description, 123-136; labora- 

 tory, 299-301 ; organ systems, 128- 

 134; structure, 123-128 



Bell-animalcule (see Vorticella) 



Bilateral symmetry, 81, 154 



Bile, 189 



Bile duct, 183, 186 



Binary fission, 25, 31, 44, 45, 50, 64 



Binomial system, nomenclature, 27 



Biology, 3 



Biramous appendage, 100 



Birds, 159 ; reproductive organs, 232 



Birth, 160, 236 



Bivalves, 139 



Bivium, 75 



Bladder, Clam, 146 ; Frog, 203 



Blastocoel, Frog, 224 ; Chick, 234 



Blastoderm, 233, 234 



Blastopore, 226 



Blastostyle, 69 



Blastula, Earthworm, 94 ; Frog, 224, 

 Chick, 234 ; Hydra, 66 ; Mammal, 

 237 



Blind spot, 220 



Blood, 62; Bee, 130; Clam, 143; 

 Crayfish, 105; Earthworm, 88; 

 Frog, 192 ; Vertebrates, 153 



Blood, clotting, 201 



Blood corpuscles, 88, 193 



Blood spaces, Crayfish (see Sinuses) 



Blood vessels, Bee, 129 ; Clam, 143 ; 

 Crayfish, 105; Earthworm, 88; 

 Frog, 192 



Body wall, Earthworm, 84; Frog, 

 182 



Bombyx mori, 138 



Bone tissue, 174 



Bones, Fore limb, 180; hind limb, 



180 ; skull, 175 ; vertebral column, 



178 

 Botany, 3 



Bowman's capsule, 202 

 Brachial, arteries, 195 ; plexus, 213 ; 



veins, 194 

 Brain, Bee, 133; Crayfish, 110; 



Earthworm, 95; Frog, 209, 226; 



Grasshopper, 123 ; Mammals, 210 ; 



Sheep, laboratory, 347 

 Branchiae, 75, 78 ; Crayfish (see 



Gills) 

 Branchial chamber (see Gill chamber) 

 Branchial vessels, Clam, 144; Cray- 

 fish, 107, 108 

 Branchio-cardiac canals, Crayfish, 



107 

 Branchiostoma,, 152 

 Breathing, 189, 191 

 Brittle Star, 53 

 Brontosaurus, 158, 177 

 Brood pouch, 146 

 Brow spot, 165 

 Brownian movement, 16 ; laboratory, 



255 

 Bryophyta, 11 

 Buccal cavity, Frog, 185 

 Bud, of Hydra, 63, 64 

 Buds, medusa, 69 

 Burrows, 86 



Caecum, 76, 78, 118, 187 



Calcar, 181 



Cambarus, gills, 107 



Canal, neural, 178 



Canaliculi, 174 



Canals, Grantia, 54; semicircular, 

 218 



Canine teeth, 178 



Capillaries, Crayfish, 108; Earth- 

 worm, 90 ; Frog, 192, 197 



Capsule, auditory, 176; stinging, 

 60 



Carapace, 99 



Carbohydrate, synthesis of, 10 



Carbohydrates, 9, 188, 189, 198 



Cardiac chamber, stomach, 104 



Carnivora, 161 



