XX LIST OF ILLUSTRATIONS. 
PAGE PAGE 
Mollusks — continued : Reptiles — continued: 
Petunculus . - 3 . 3802 Tortoise . . : = 74 
Pholas striata = - 302 Turtle, Green . ; < 170 
Pinna . : c - 3805 Hawk’s Bill . . « 180 
Poulp Gains» + - 272, 278 Loggerhead. a iG 
Pteroceras scorpio 290 Water-Snake 183 
Retepora cellularis  . . 818 | Rocky Mountains at the aa of 
Salpa . . 326 the Bear Lake River = ae ae 
Seyllea . ° 283 | Rotifera :— 
Sea-Hare, compound tothe Conochilus volyox 268 
Of. - ; : 295 Philodina roseola 269 
Sepia . ‘ 104, 275 Ptygura melicerta 2 ef 1267 
Solen, or Razor-Shell . 304 | Saw of the Saw-Fish . 100 
Strombus pes pelicani . 290 | Sea-Fowl Shooting . 168 
Syllea, gizzard of 2 294 | Skeleton of the Dugong . = Js 
Tiara . : 2 . 288 of the Perch 6 : . 188 
Tridacna gigas. - . 314 of the Seal . : 119 
Whelk. : s : 413 of the Tortoise . - = lin 
Worm-shell 291 | Skerryvore Lighthouse : . 89 
Muscles and Electric Batteries bf Skull and Head of Walrus . 129 
the Torpedo 202 | Skull of Whale, with the Baleen. 98 
Nervous Axis of an Aeweldan 262 | Surirella constricta 402 
Noctiluca miliaris - 419 | Theoretic representation of the 
Ova of the Cuttle-Fish < 278 Circulation in Fishes 192 
Protozoa :— Theoretic representation of the 
Ameha : : : 379 Circulation in Mammals and 
Foraiainifera 381 Birds. : 175 
Halina papillaris 386 | Theoretic eee of the 
Infusoria, marine 384 Cireulation in Reptiles 175 
Nummulina discoidalis 378 Torso Rock, near Point Deas 
Polycistina . 383 Thomson, in the Arctic Ocean . 8 
Sponges : - . 885 | Sockets with teeth, of Echinus 
Tethea ‘ * - 885, 386 esculentus ‘ : - 3839 
Reptiles :-— Urticating organs of Cilendamte 346 
Alligator Lucius . ’ 173 | Water-Spovts . : 69, 70 
