530 



INDEX 



Shell-fish and disease, 228 

 Ship-worms, 229 

 Shrews, 311 

 Shrimps, 118 

 Sialidae, 167 

 Silk-worm, *iy6, 334 



diseases, 364 

 Silpha ramosa, antenna, 

 Siluridfe, 248 

 Silvanns sttrinamemsis, 

 Silver-fish, 155, 156 

 Simiidae, 319 

 Simulidae, 385 

 Simulium, *386 

 Siphonaptera, 172 

 Siren, 256 

 Sirenia, 301 



Sitotroga cerealella, 497 

 Skates, *246, 247 

 Skunk-bear, 314 

 Skunks, 314 

 Sleeping sickness, 352 

 Slime moulds, 35 

 Slime slugs, 123 

 Sloths, 300 

 Slugs, 231 

 Smelt, 252 



Smynthurus hortensis, 155 

 Snails, 230 



Snake-bites, treatment, 271 

 Snakes, 267 



coral, 270 



garter, *268 



king, *2&9 



water, 269 

 Snow-flea, 167 

 Soft brown-scale, 453 

 Sow-bug, *i2i 

 Sparrow, *287 

 Species, defined, 51 

 Spermophiles, 310, 311 

 Sphargis coriacea, 264 

 Sphecina, 183 

 Spenophorus sp., 491 

 Sphinx-moth, mouth-parts, *i48 

 Spiders, 206 



hour-glass, 207 

 Spilogale, 314 

 Spirochceta, 356 



S. duttoni, 357 



S. marchouxi, 357 



S. novyi, 357 



Spirochosta pallidula, 357 



S. recurrentis, 357 

 Spirochastae, 34 

 Spirochaetes, 355 

 Spirochaetosis, 357 

 Sponges, bath, *6i 



boring, 62 



classified, 62 



structure, 58 



vase-shaped, *59 

 Spontaneous generation, 36 

 Sporozoa, 34, 357 

 Spotted fever, 364 

 Spring- tail, *i55 

 Squalus, 246 

 Squamata, 262 

 Squash-vine borer, 487 



bug, 487 



Squids, 233, *2 3 s 

 Squirrels, 310 

 Stable-fly, * 3 66, 382, * 3 S 3 

 Star-fish, cross section of ray, 



*02 



dissection, *9o 



structure, 89 

 Steganopodes, 280 

 Stegomyia fasciata, 373, *374 

 Sting-rays, 247 

 Stomach- worm, 81 

 Stomoxys calcitrans, *365, 



.387 



Stone-flies, *i57 

 Strawberry crown-borer, 472 



crown-moth, 473 



root-louse, 473 



root- worms, 473 



weevil, 473 



Striped cucumber-beetle, 486 

 Strongylocentrotus franci scanus , 

 Struthio camelus, 279, 333 

 Sturgeons, 247 

 Suckers, 248 

 Sulphur-lime, 415 

 Sunfishes, 253 

 Surf-fish, 253 

 Surra, 354 

 Sits scrofa, 327 



5. vittatits, 329 

 Swamp fever, 366 

 Swans, 280, 333 

 Sympetrum illotum, *i59 

 Syphilis, 357 



