INDEX 



529 



Ratitas, 279 

 Rats, 309 

 Rattlesnakes, 269 



head, *2fi 



rattles, *2jo 

 Rays, 247 



Red-necked cane-borers, 468 

 Red scale, *454 

 Red spider, 212 

 Reindeer, 303 

 Relapsing fever, 356 



tick, *3S6 

 Repellents, 419 

 Reptilia, 260 

 Resin spray, 417 

 Rhagoletis cingu-lata, 425 



R. pomenella, 425 



R. ribicola, 471 

 Rhizopoda, 34 

 Rhiptoglossi, 265 

 Rhopalocera, 178 

 Rhynchocephalia, 262 

 Rice- weevil, 496 

 Rocky Mountain fever, 364 

 Rodents, 305 

 Rosalina varians, *33 

 Rose-chafer, 466 

 Rose scale, *468 

 Rotifers, *87 



Sacculina, 116 



Saissetia hemisphcerica, 453 



S. olece, 452, *453 

 Salamander, *257 

 Salmo irideus, * 251 



S. salar, 251 

 Salmon, 250 

 Salmonidae, 250 

 Salvelinus, 251 

 Sand-bugs, 120 

 San Jose scale, 445, *446 

 Sanninoidea exitiosa, 434 



S. opalescens, *434, *43S 

 Saperda Candida, 436 

 Sapphirina, 114 

 Sap-suckers, 285 

 Sarcophaga, 388 

 Sar copies scabiei, 213, *2i4 

 Sardinella, 249 

 Sardines, 249 

 Sauria, 265 

 Saw-fish, 247 



Saw-flies, 180 

 Saxidomus nuttatti, 224 

 Scab-mite, 214 

 Scale insects, 443 

 Scalops aquaticus, 311 

 Scaphopoda, 222 

 Sceloporus occidentalis, *266 

 Schistocerca americana, "163 

 Schizoneura lanigera, 440, *44i 



S. nlmi, *si2 

 Schizothoerus nuttalli, 224 

 Sciuridas, 306 

 Sciuropterus volans, 310 

 Sciurus carolinensis , 310 



5. hudsonicus, 310 



S. litdovicianus, 310 



S. niger, 310 

 Scolopendra, 124, *i2S 

 Scolyius, 515 

 Scombridae, 252 

 Scorpion-flies, 167 

 Scorpions, 206 

 Screw-worm fly, *387, 388 

 Scurfy-scale, 448 

 Scutellisla cyanea, 452 

 Scutigera forceps, 124 

 Scyphozoa, 66 

 Sea-anemones, *63, 66 



cows, 301 



cucumbers, *95, 96 



lily, *96, 97 



mats, 88 



slugs, 233 



squirts, 237, *238 



urchin, *94, 95 

 Sea-lions, 316, 318 

 Seals, 315 



fur, *3i6 

 Segregation, 343 

 Selection, artificial, 321, 342 



natural, 342 

 Serpentes, 265 

 Serphus dilatatus, "165 



mouth-parts, "145 

 Serranidae. 253 

 Sesia rutilans, *4?2, 473 

 Sex, 46 

 Shad, 249 

 Sharks, 245 

 Sheep, *330 



Rocky Mountain, 304 



wild, *329 



