i:n^dex. 



In the Index the numbers in Boman type (21) lefer to pages ; those in bold-faced 

 type (40) refer to cuts. No attempt is made to analyze the statements made for 

 each group in Part II. Reference is made for each class or prominent order to those 

 cuts in Fart I. which illustrate the group. 



Abomashs, 89, 56. 

 Absorption, Invertebrates, 94. 



" Vertebrates, 94, 60, 61. 



Acalephse, 24T, 178. 



" see Jelly-fish. 



Acarina, 288, 258. 

 Acarus, 288. 

 Acetabulum, 14T. 

 Acipenser, 315, 290. 

 Acorn-shell, 284, 254. 



" see Barnacle. 



Acrania, SOS, 310, 282. 

 Acrydium, 297. 

 Actinavia, 261, 198-207. 

 Actinoid Polyp, 2S1, 199. 



" anatomy of, S8, 95, 198. 



" blond of, 9T. 



" development of, 205, 203. 



'■ liver-cells of, 123. 



" month of, 55, 38, 198. 



" nettle-cells of, 51. 



" prehension of, 51. 



" reproduction of, 192. 



" respiration of, 112. 



" skeleton of, 130, 96. 



" skin of, 127. 

 Adder, 320, 298. 

 AdiposeTissue, 38, 10. 

 jEolis, 274. 

 .^pyoruis, 327. 

 Air-bladder, 117. 

 Air-sac, 117. 

 Albatross, 330. 

 Albumen, 19. 



Alcyonaria, 2S6, 200, 207, 208. 

 Alcyonium, 256, 208. 

 Alimentary Canal, 74. 



" " Coelenterata, 76. 



" " Crustacen, 77. 



" " development of, 203. 



Alimentary Canal, dhodennm, 90. 

 " " Echinoderms, 76. 



" " Fishes, 80. 



" " Insects, 78. 



" '* Mammals, 85. 



" " microscopic anatomy 



of, 57, 68. 

 " " Mollusks, SO. 



'* " Protozoa, 75. 



" ■' Spiders, 79. 



" " stomach, 87. 



" " structure of, 89. 



« " see Intestine, Mouth, 



Stomach, Teeth. 

 Allantoidea, 393. 

 Allantois, 117, 203, 169-171. 

 Alligator, 67, 324, 181, 808. 



" nest, 196. 

 Alternate generation, 211. 

 Ambulacra, 131, 262. 

 Ammonite, 279. 

 Amnion, 202, 170, 171. 

 Amoeba, 50, 168, 240, 187. 

 " conjugation of, 196. 

 " ectosarc of, 75. 

 " feeding of, 65. 

 " locomotion of, 164, 157. 

 Amphibia, 317, 68-65, 76, 85, 87, 294- 

 297. 

 blood of, 99, 68-65. 

 " brain of, 170, 140 

 " circulation of, 108, 76. 

 " lungs of, 118. 

 " mouth of, 61. 

 " see F^-og. 

 Amphicoelous, 3S6. 

 Amphioxus, 97, 138, 233, 310, 282. 

 " feeding of, 50. 



" skeleton of, 139. 



AmpbithoS, 2S4, 252. 



