Index 



435 



PAGE 



rush, beaked 351 



club 334 



1 spike 354,359 



rushes 89, 157, 381 



Ryacophila 370 



Rynchospora 351 



Sagittaria 334 



salamander, spotted 237 



salamanders. .236, 237, 291, 337, 379 



Salpina 299 



salts, mineral 40 



Salvinia 150, 334 



sanitation 21 



Saprolegnia 143, 144 



Saranac Inn 163 



Sarcodina 159 



Sarracenia 284 



Sars 18 



saturation 44, 55 



Scapholeberis 328 



scavengers 18, 175, 282, 283, 296 



Scenedesmus 129, 130 



Sciomyzidae 230 



Scirpus 87, 334 



scuds 183, 189, 190, 332, 341, 345, 

 360, 390, 392, 393 



Scutellaria 344 



seals 244 



Secchi'sdisc 27,28,65,71 



secretions 257 



sedges 89, 94, 157, 343, 344, 407 



sedges, tussock 352, 354, 357 



seed plants : 145 



seed production 272 



seeds 203 



seepage 57,59 



Selenastrum 129, 131 



Sellards 69 



serpents 390 



sewage 



sewage contamination 



sewers 



sheepshead 235, 291, 292 



shelter-building 257,314,340 



shelters. .258, 260, 294, 326, 372, 395 



shell, butterfly 291 



1 yellow sand 291 



shells 244 



shoals 30, 73, 90, 91, 145, 156,231,232, 



140 

 357 

 159 



307,331,333,343 

 sli 



shore lines 404, 406, 407 



shore vegetation 91, 131 



PAGE 



shovels 256 



shrimps 183, 184, 192 



Sialididae 212, 213, 221 



Sialis 214 



Sida 301 



Silica 52, 53, 109, no 



silt 26, 27, 29, 42, 67, 77, 84, 

 85, 191, 251, 252, 254 



silt, adherent 340 



' depositions of 90 



' excess of 326 



" inwash of 60 



Simocephalus 185, 186, 387 



Simuliidae 227 



Simulium 81, 259, 280, 358, 363, 364 



sinks 68, 69 



Siphlonurus ( = Siphlurus) 205, 206, 

 259, 398 



siphons 252 



Sirenia 273 



Sisyra 214, 215 



sludge 173 



sluiceways 169 



Smith, Lucy Wright , 204 



snails 180, 181, 216, 227, 254, 260, 

 337, 340, 345, 357, 37, 373 

 388, 398, 399 



snails, limpet-shaped 182 



" operculate 182, 356 



pulmonate 182 



" viviparous 182 



snakes 250 



snipes 239 



societies, aquatic 294, 296 



bog 348 



lenitic. . .315, 316, 356, 360 



limnetic 293, 294 



littoral 294, 314, 322 



10^0315,356,360,362,367, 



372,373 



soils, calcareous 41, 51, 137 



" siliceous 41 



Solanum dulcamara 245 



soldier-flies 338, 359 



solids, dissolved 41, 49 



\ suspended 41,43,54 



solidity 274 



solutions 68, 84, 95 



sow-bugs 193 



Sparganium 157, 334 



spatterdock. . . 154, 322, 334, 380, 405 



spawning grounds 385 



spawning time 234, 343 



