310 



INDEX. 



Page 



Seal 180 



Sebaceous glands 145 



Secondaries 122 



Sedimentary Strata 268-71 



Segmentation of egg in fowl. . 131 



of Crustacea 192 



of Myriapoda 211 



Segmented and unsegmented 



worms 220 



Segmental organs 218 



Selache 77 



Sella turcica 149 



Selenodont 176 



Semi-circular canals, mammals 154 



of Fish 37 



Semnopithecns 189 



Serranus 66 



Senses of insects 207 



Sepia 235 



Sepia 237 



Septa of Actinozoa 248 



Serous coat of intestine 3J 



Sesamoid bone (formed in ten- 

 don)' 164 



Sesia 216 



Set* of earthworm 220 



Siphoniala 232 



Shad 60 



Sharks 76 



Sheat-tish 55 



Shell of MoUusca 236 



Shell Brachiopoda 237 



Sheep 179 



Shiner 57 



Shrew 182 



Shields of turtle 101 



Shrimp 197 



Shrike 141 



Shoveller 139 



Shovel-nosed Sturgeon . . . . 73 



Sieve-plate of ethmoid 153 



Silkworm 216 



Silurus 55 



Simla 1&9 



Simple eye 203 



Simulia 216 



Siphons 229 



Siphonops 98 



Siren 89 



Sirenia 166 



Page 



Skeleton fowl 125 



Skeletal system 17 



of Actinozoa 248 



of Protozoa . 254 



of Radiolaria 255 



of Sponge 250 



Skull of cat 147 



of Menobrancli 82 



Skull 103, 134 



Vertebrate, theory of . . . . 20 

 Tjnion of, with vertebral 



column 126 



Skunk 179 



Skin 12 



of Menobrauch 81 



of Turtle 101 



of Aquatic Urodela 92 



Skink 107 



Skimmer 136 



Slater 198 



Sloths 163 



Slough of snake 1 1 1 



Slime-cells 17 



Slipper-animalculb 258 



Smelt 60 



Snakes HI 



Snapper 100 



Snipe 139 



Social life of Hymeuoptera . . 216 



Soldiers of Termites 212 



Sole 70 



Solitaire 140 



Somateria 139 



Sorex 182 



Sparrows 141 



Spatula 139 



Spawn of frog 94 



Species 51, 284 



Specialisation ^ 70 



Spleen 47 



Spectre ( Tarsius) 187 



Spermophilxis 184 



Speotyto 140 



Sphenotic ^2 



Sphenoid, complex, m mam- 

 mals 145 



Spliex 217 



Sphinx 216 



Spinal cord 32 



Nerve roots 32 



