INDEX. 



289 



Rotatoria, 53 

 Ruminants, 254 



Salamander, 169 



Salmon, 161 



Saw-flsh, 147 



Scalops aquaticus, 345 



Scaphiopus, 178 



Sceleporus undulatus, 183, 185 



Sciurus Carolinensis, 244 



Hudsonius, 243 

 Scomber scombrus, 162 

 Scorpion, 90 

 Scyphistoma, 31 

 bcypbophorl, 156 

 Sea-cow, 250 



cucumbers, 39, 47 



horse, 165 



squirts, 140 



urchins, 39, 45 

 Seal, 259 

 Shad, 159, 160 

 Shagreen, 146 

 Shark, 145 

 Sheep, 254 

 Shrew, 246 

 Shrimp, 84 

 Struthio camelus, 314 

 Sillt, formation of, 131 

 Siredon, 174 

 Sirenia, 338 

 Siren lacertina, 171 

 Sow-bug, 88 

 ■ Skate, 147 

 Skunk, 361 

 Slime moulds, 4, 5 

 Sloth, 338 

 Slug, 73 

 Smelt, 163 

 Smolt, 161 

 Snails, 73 

 Snake, blind, 175 

 glass, 186 

 18 



Snakes, 187 

 poisonous, 190 



Snow, red, 3 



Specialization, 34 



Sphaeridia, 43 



Sphargis coriacea, 193 



Spiders, 90, 128 



Spiracles, 96 



Sponges, 31 

 useful, 23 



Spoon-bill fish, 149 



Squid, 75 



Squirrel, 243; red, 243; gray, 344 



Starch, 8, 3 



Star-flsh, 43, 47 70 



Stegocephala, 171 



Stegopodes, 216 



Stentor, 18 



Stomach of Ruminants, 254 



Sturgeon, 14o 



Sun-fish, 165, 166 



Swimming, nature or, iS3 



Syngnathus peckianus, 165 



Tadpoie, 180 

 Tailor-bird, nest of, 208 

 Tamias Asiaticus, 343 

 Tapir, 253 



Tautogolabrus adspersus, 162 

 Teleocephali, 157, 159 

 Teleostei, 145 

 Tetradecapoda, 89 

 Thysanoptera, 100 

 Thysanura, 138 

 Tissues, 34 

 Toad, common, 176, 177 



horned, 185 



spade-footed, 178 



tree, 178 

 Trachystomata, 171 

 Trepan g, 53 

 Trichoptera, 104 

 Trout, 163 



