434 



Index 



PAGE 



Protection of breeding fishes. . . . 385 



proteins 48, 139, 148 



proteins, liquefaction of 48 



protoplasm 30, 244 



Protozoa 250, 390 



Protozoa, parasitic 162 



protozoans 158, 159, 160, 161, 257, 

 299 



protozoans, ciliate 171 



sessile 162 



Psephenus. . . .224, 260, 267, 370, 373 



pseudopodia 159, 162 



Psorophora 284 



Psychoda 359, 360 



Psychodidae 230 



Pteridophytes 149, 150, 151 



Pterodina 299 



pubescence 276 



puddles 316 



pulmonates 337 



punkies 279 



pupa of Limnophilus 199 



pupae of blackfly 280 



" dipterous 280 



Pyralidae 218 



Quadrula 289, 291 



Radula 181 



rail, Sora 239 



" Virginia 239 



rails 224, 342 



rain 44 



rainfall 55, 56, 57, 69, 74, 77, 88, 316 



rainfall, excess of 56 



" surplus 403 



" variation it 70 



rainspouts 166, 177 



rainwater 41, 57, 68 



Rana pipiens 236 



Ranatra 276, 278, 339 



Ranunculus 156, 321, 334 



rapids 64 



rate of streamflow 85 



Rattulus 299 



readaptations 270 



Reaumur 16, 202 



Redi 16 



regions, arid 57, 75 



limnetic 315, 325, 326 



littoral 315, 325, 326, 341, 



395 

 Reighard, J 28 



PAGE 



relations, cultural 399 



spatial 326, 331 



Renwick, Ithaca 15 



reptiles 231, 238 



resemblance, protective 361 



Reservation, Clark 63 



reservations, public 411 



reservoirs 403, 404 



reservoirs site 403 



respiration 252 



Rhabdoccele 1 70, 172 



Rhichtericlla 129, 131 



Rhizopoda 159 



rhizopods 325 



Rhizosolenia 297 



Rhodophyceae 135 



Rhynchostegium 148 



Riccia 145, *46,334 



Ricciocarpus 153 



rice, wild 13, 379, 380, 382 



riffles 64 



rills 77 



Rithrogena 369, 370 



River, Chippewa 67 



" Illinois 48, 49, 79, 80, 83, 

 85, 103, 107, 131, 171, 

 312, 356, 357 



River, Mississippi 41, 67, 79 



" Missouri 41 



" Niagara 61 



" Seneca 65, 91 



" Spoon 28, 49 



" vSt. Mary's 69 



St. Mark's 69 



" Susquehanna 64 



" Suwannee 94 



riverweeds 1 =52 



Rivularia 133, 134, 297, 337 



rocks, archacan 52 



rock ledges 363 



rodents 241,312 



Roesel 16, 202 



rotifers 106, 166, 177, 178, 179, 246, 

 248, 250, 257, 266, 269, 282, 

 298, 299, 300, 302, 305, 309, 

 312, 318, 325, 327, 328, 341, 

 390 



rotifers, loricate 248 



" resting eggs of 325 



" sessile 332 



Rumex 345 



runners 272 



Ruppia maritima 71 



