531 



Porcupine Ant-eater, 110 



Porthesia auriflua, 180 



Porthesia chrysorrhoea, 180 



Portuguese Man-of-war, 46, 372 



Pouch-shell, 8 



Pressure of Atmosphere, 329 



Printing-preas, 317 



Proboscis of Fly, 379 



Processionary Moth, 180 



Projectiles, 74 



Propolis, 220 



Pseudoscope, 287 



Ptarmigan, 150 



Pucunha, 76 



Puff and Dart, 75, 351 



Pulley, 452 



Pyramids, 216 



Quilt Armour, 126 



Radius, 194 

 Rain-cloud, 429 

 Ranjows, 109 

 Rat-tail Maggots, 385 

 Rattan, 204 

 Razor, 236 



Receiver of Air-pump, 511 

 Reduvius personatus, 146 

 Reed, 518 



Reverted Spikes, 102 

 Ribbon Saw, 244 

 Ring and Staple, 415 

 Ringed Tissues, 378 

 Robber-crab, 405 

 Rocket, 462 

 Rod and Line, 90 

 Rolling-mill, 322 

 Rosemary, 408 



Sabella, 218 



Saddle-back, 348 



Sailing Raft, 5 



Salad-dressing Bottle, 511 



Sand-paper, 265 



Saturnia pavonia minor, 104 



Saw, 239 



Saw-fly, 241 



Sawyer-beetle, 248 



Scale Armour, 123 



Scales of Butterfly's Wings, 187 



Scaling-fork, 133 



Scarabaeus, 494 



Scissors, 228 



Screw, 408 



Sea-anemone, 8 



Sea-basket, 89 



Sea-mouse, 353 



Sea-urchin, 315 



Seed-drills, 336 



Sepia oflicinalis, 167 



Serpula, 44, 135, 219, 352 



Sewage, 496 



Sewing, 406 



Shark-tooth Sword, 56 



Shears, 228 



Sheep-fly, 396 



Shell of Tortoise, 188 



Ship- worm, 200 



Short-tailed Manis, 124, 188 



Sialis armata, 275 



Siamese Link, 448 



Silkworm, 158 



Silkworm Cocoon, 179 



Siren, 523 



fejfrex gigas, 252 



Skidor, 466 



Skip-jack Beetle, 387 



Skull, 210, 511 



Slates, 188 



Sling, 502 



Sloth, 398 



Slug, 245 



Smoke-jack, 499 



Snow-house of Esquimaux, 163 



Snow-house of Seal, 163 



Snow-shoe, 464 



Spade, 223 



Spear, 58 



Spectroscope, 297 



Spider, 509 



Spider-crab, 147 



Spiked Defences, 107 



Spiracles of Fly, 357 



Spiral, 498 



Spiral Spring, 371 



Spiral Tissues, 375 



Spirit-level, 271 



Spokeshave, 236 



Spout-hole, 434 



Sprat-sucker, 71 



Spring, 430 



Spring-bow, 142 



Spring-gun, 142 



Spring-jack, 386 



Spring Solitaire, 371 



Spring-tails, 388 



Spring-trap, 95 



Squirrel, 456 



Stag-beetle, 248 



Star-fish, 332 



Steam-blast, 443 



Steelyard, 450 



Stereoscope, 288 



Stereotype, 479 



