Balena 
Balanoglossus 
Balanus 
Baleen 
Bandicoot 
Barbule 
Barnacle 
Bats - - 
Bat, as zrial type of mammal 
Bdellostoma 
Bears - 
Beaver 
Bees 
Beetles 
Belemnites - 
Beroé - 
Bilateral symmetry 
Bilophodont 
Bionomics - 
Bipinnaria 
Birds - 
Blastocyst 
Blastoderm 
Blastomere - 
Blastopore - 
Blastula (Blastosphere) 
Blatta ~ 
Blood 
Blood-vascular 
Vertebrata 
" of mammals 
Body- -cavity 
Bone - 
Bones of vertebrate skull 
" limbs 
system of 
Bony pike - 
Book scorpions 
Bot-fly - 
Brachiopoda 
Brachydont 
Brady podidze 
Bradypus_ - 
Brain of Vertebrata 
Branchial arches - 
Branchial plate, Nephrops 
Branchiostegal rays 
Brittle-stars 
Bryozoa - 
Buccal mass, snail 
Budding 
INDEN. 
Bugs 
Bulbus arteriosus 
Bulla - 
Bunodont 
Butterflies 
CaBBAGE WHITE 
Caddis flies 
Cainozoic Era (group) 
Calcaneum 
Calcarea 
Calciferous glands, 
worm 
Cambrian period (system) 
Camelidz 
Canidee 
Canis - 
Cannon-bone 
Capitulum of rib 
Capybara - - 
Carboniferous system eueHOS) 
Carinatee - 
Carnassial teeth - 
Carnivora 
Carpalia 
Cartilage 
" bones 
Cassowary 
Cat 
Caterpillar 
Caviidee (guinea Pigs, &e. ) 
Cebidze 
Cecidomya 
Cells - 
u structure of 
Cellulose in Tunicata 
Centetes 
Centipedes - - 
Centrale of rabbit 
Centrolecithal 
Centrosomes 
Cephalochorda 
Cephalodiscus 
Cephalopoda 
Ceratodus 
Cercariz - 
Cercopithecidze 
Cestoda 
Cestum Veneris - 
Cetacea 
earth- 
