430 



Index 



I'AGE 



larvae, of black flies 227, 364 



of beetles 120, 250, 368 



of caddis-flies 215 



of craneflies 256 



dipterous 224, 227, 288 



of fish-flies 213 



" of horseflies. . . .227, 230, 340 



" of mayflies 120, 332 



" of midges 226, 227, 250, 258, 

 325. 338, 341. 356. 

 373, 387, 388, 389, 

 390, 393> 394, 397 



" of mosquitoes 227, 250 



of orl flies 213 



of pmikies 120 



of spongilla flies 215 



leaf-beetle 346 



leaf-drift 360 



leech, clepsine 176 



leeches, 171, 175, 176, 257, 325, 341. 



364 



Leersia 344 



Leeuwenhoek 16 



Lefevre, G 290 



Leidy, Joseph 19 



Lemanea 135, 136 



Lemnaceae 135 



Lemna 150, 173, 240, 321, 334 



Lepidoptera 195, 218 



Leptidae, aquatic 229 



Leptoceridae 216 



Leptocerus 216, 260, 372 



Leptodora 301, 311, 312 



Leptophlebia 360 



Leptothrix 141,142 



Lestes 341,345,346 



Leunis 173 



Libellula 340 



lichens 132, 282 



life cycle 260, 261, 274, 316, 397 



life, on the bottom 326 



" at the surface 327 



" in open water 243 



light 306, 307, 308 



light relations 29 



Liljeborg 18 



Lime 50 



limestone 50 



Limnasa 182 



Limnacea 346 



Limnephilus 197, 198, 199, .200 



Limnobates 346--. 



Lirnnocalanus 301, 311 



PAGE 



Limnochares 194 



limnological phenomena 14 



Limnophilus 345 



Limnophora 359 



limpet 260 



Lintner, A.J 214 



liverworts 146," 153, 334 



lobsters 192 



locomotion 273,281 



locomotion, rolling 104, 107 



locn 239 



Lorenz 33 



lorica 106, 161, 17S 



loricate forms 299 



lotus 3'6o, 404 



Uoyd, J.U \.. 54 



lubrication 272 



Ludvigia palustris 156 



lungs 275, 276 



Lyman, Helen Williamson 214 



Lyngbya 297, 305 



Mackeral 250 



Macrobiotus 164, 166 



Magazine, Farmers' 384 



maggot, rat-tailed 229, 277, 339 



magnesia 50 



Malacostraca 183, 189, 301 



Mallomonas 299, 308, 309 



Malpighi 16 



mammals 231, 273, 274 



Mammoth Cave, Kentucky .... 51,84 



manna grass 334, 343 



mantle 252 



marl 50,75,352 



marsh bedstraw 344 



bellwoTt 344 



fern 145,344 



five-finger 344 



gas 48 



horsetails 151 



mallow 145 



Montezuma 65, 87, 91, 92 



ponds 95 



Renwick, Ithaca 347 



skull-cap 344 



St. John's wort 344 



marsh-treader 346 



marsh- wren 342 



marshes 14, 48, 59, 64, 65, 66, 

 73, 89, 90, 95, 97, 263, 

 307, 316, 333, 345, 346, 402, 

 411 



