INDEX. 



Abdomen, of Lobster, 29 ; of 

 Spider, 37 ; of Centipede, 39 ; 

 of Insect, 42. 



Actinia, 14; form of, 14; tenta- 

 cles of, 16 ; nettle-cells of, 16 ; 

 digestive system of, 16 ; habits 

 of, 16. 



Aciinozoa, 14 ; characters of, 17. 



Adductor muscles of Ilija, 58. 



JEshna (see Dragon-fly). 



Amceha, 6; form of, 6; feeding 

 of, 7; locomotion. of, 7; con- 

 tractile chamber of, 8 ; habitat 

 of, 8. 



A mphibia, 82 ; characters of, 87. 



Anal fin of Perch, 78. 



Annelida, 23 ; characters of, 27. 



Ammloida, characters of, 106. 



Annulosa, characters of, 107. 



Anser {see Goose). 



Antennae, of Lobster, 31 ; of 

 Spider, 37 ; of Centipede, 39 ; 

 of Insect, 43. 



Appendages of Lobster, 31, 32. 



A rachnida, 35 ; characters of, 38. 



Arms, of Star-fish, 17 ; of Tere- 

 hratida, 55 ; of LoUgo, 71. 



Articulate animals, 33. 



Ascidia, form of, 51 ; coverings 

 of, 52 ; breathing-organs of, 53 ; 

 digestive system of, 53 ; heart 

 of, 53 ; nervous system of, 53 ; 

 habits of, 53. 



Ascidians (see Tunicata). 



Aves, 93 ; characters of, 98. 



Beak, of the shell of Terebratula, 



54 ; of the shell of Mya, 62 ; of 

 the Goose, 96. 



Bivalve shells, 56 ; of Terebratula, 

 54 ; of 21ya, 58. 



BrachiojMda, 54 ; characters of, 

 56. 



Breathing-organs, of Star-fish, 20 ; 

 of Leech, 26 ; of Lobster, 33 ; 

 of Spider, 37 ; of Centipede, 

 41 ; of Insect, 45 ; of Flustra, 

 50; of Ascidia, 53; of Mya, 

 60 ; of Whelk, 67 ; of Cuttle- 

 fish, 74 ; of Perch, 81 ; of Frog, 

 86 ; of Rattlesnake, 91 ; of 

 Goose, 97 ; of Dog, 103. 



Bucciivam {see Whelk). 



Calamary, form of, 71 ; arms of, 

 71 ; jaws of, 73 ; funnel of, 73; 

 digestive system of, 73 ; nerv- 

 ous system of, 73 ; ink-bag of, 

 74 ; heart of, 74 ; breathing- 

 organs of, 74 ; pen of, 75 ; 

 habits of, 75. 



Canine teeth of Dog, 101. 



Canis {see Dog). 



Carriage-spring appai-atus of Tere- 

 hraHtla, 55. 



Caudal fin of Perch, 78. 



Centipede, 39 ; head of, 39 ; foot- 

 jaws of, 39 ; body - rings and 

 legs of, 40 ; eyes of, 39 ; diges- 

 tive system of, 41 ; heart of, 

 41 ; breathing-organs of, 41 ; 

 nervous system of, 41 ; habits 

 of, 41. 



Cephalopoda, 71; characters of, 75. 



