Index 



427 



PAGE 



fish fry, planting of 384, 385, 386 



" raising 385 



fish, fresh for the table 407 



fishponds. . 387, 396, 404 



fish population 398 



fish raising 404, 408 



Fissidens julianum 148 



flagella 102, 103, 104, 105, 106, 108, 



246, 250, 310 



flagellates 102, 103, 106, 107, 246, 



248, 296, 302, 303, 305, 



306, 309, 311, 316, 356 



flagellates, chlorophyl-bearing . . 299 



green 104 



shell-bearing 108 



spherical 108 



winter 107 



flatworms 170, 171, 172, 173, 250, 

 260, 263, 340, 370 



floats 247, 266, 284 



flocculence 295 



flood 57,67,75,87 



flood conditions 88 



flood-decline 88 



flood plain. 64, 77, 87, 356 



flood plain of rivers 67 



flood rise 88 



flora 18, 53 



Florida 59 



Floscularia 178, 299 



flotation 243, 245, 246, 247, 251, 272, 

 297 



flotsam 153 



foliage 45 



food, abundance of 306 



' available 304 



1 dependencies 389 



" dissolved 26 



" examinations 398 



food-fishes 387, 39 



food preferences 305, 391 



" relations 389 



foodstuffs 395, 402 



food supply 21, 25 



Fontinalis 148 



forage fishes 398, 399 



foragers 367 



foragers, shelter-building 370 



foraging grounds 57 



foraging habits 373 



forage organisms 396, 398 



Forbes, Stephen A. 70, 80, 389, 390, 

 394 



PAGE 



Forel, F. A 53, 76 



forget-me-not 405 



Fragillaria 115, 245, 297, 305, 308 



Fredericella 166 



freezing point 244 



frog, bull 237 



green 237 



leopard 236, 237 



pickerel 237 



tree 237 



wood 237 



frogs 175, 236, 237, 343, 383, 387, 390 



frost-line 83 



fungi 139 



fungi, parasitic 296 



fungus 282, 400 



fur-bearers 241 



furs 379 



Galingale, low 207 



Galium palustre 344 



Gammarus 190, 191, 360, 392 



gas, marsh 96 



gases 25, 40, 41, 43, 44, 45, 46, 54, 55, 

 56, 244, 252, 265, 279, 309 



gases, noxious 96 



Gastropus 299 



gars 291,333 



geese 239, 240, 242 



gelatin 127, 161, 169 



gemmules 164, 247 



gill arches 313 



" cavity 292 



" chambers 209, 252 



" covers 253, 366 



gill-plates 208, 251 



gill-rakers 235, 313 



gill-strainers 392 



gills 182, 217, 233, 235, 236, 252, 273, 

 275, 279, 280, 288, 369, 370, 397 



gills, anal 279 



blood 279 



filamentous 204, 224, 279 



mussel 181 



tracheal 278, 279, 368 



tube 280, 368 



glacial period 62 



glaciation 64 



glands 284 



Glenodinium 103, 108 



glochidia 181, 287, 288, 289, 290, 291 



Gloiotrichia 297, 304 



Glyceria 334 



