INDEX 



PAGE 



aborigines 382 



acids, humous 95, 96, 348 



Acilius 



333 



Acorus 157 



Acroperus harpae 300, 301 



adaptations 260, 274, 277 



Adineta 299 



adjustment 248, 261 



adjustments, individual 242 



" mutual 242, 282 



adjustability to waves 319 



aeration 



73 



Agassiz, Louis 19 



Agraylea 216 



agriculture 379, 402 



agricultural crops 404 



air-breathing 231 



air-chambers 275, 277 



air-spaces 265', 271 



air-tubes 279 



albumins 48 



a j der : 158,351,352 



ale-wives 232, 373 



algae, 26, 28, 29, 45, 46, 72, 

 100, 101, 102, no, 119, 137, 

 J 44, H5, 151, 169, 180, 181, 

 183, 189, 217, 220, 223, 295, 

 296, 301, 302, 304, 307, 311, 

 322, 391, 345, 356, 362, 373, 

 390, 395 



algae, "blanket" 336, 345, 399 



blue-green 



109, 132, 297, 302, 326 

 filamentous blue-green 296, 310 



brown 135, 136 



fresh water 101 



free-swimming 28, 339 



gelatinous 101 



green 124, 129, 299, 302 



filamentous green 124 



plancton 50, 244, 392 



protococcoid green 318 



lime-secreting 50 



marine 135 



of ponds 335 



red 135, 136 



sessile 120, 126, 336 



algae, siphon l2l 



slime-coat 



tufted i I2i i2< 



unicellular j u t ]2 ,, 



Allen, Arthur A <,^ *a 2 



Alismaceae ' ', -,". 



Alisma »*, 



alligators 



Amby stoma tigrinum 237, $42 



ammonia 25, 48, 49,' 140 



Amoeba icn 



amphibians. . . 148, 231, 236,237, 337 



Amphipoda 189, [9 



Amphizoidae 224 



Anabaena 132, 133, 295, 296, 29*7, 

 A , . 305, 308, 392 



Anachans 1 =; 



Anapus 



A * ax ;--. 155,34 



Junius 196 



Ancylus 182, 260, 370, 373 



Andromeda 1 ; 



angling 407 



animalcules 295 



animal forage 



animal husbandry 3S4, 400, 408 



animals, hoofed . . 312 



animals, limpet-shaped 260 



animal life of marshes 345 



animal population 



animals, warm-blooded 



Ankistrodesmus falcatus 129 



setigeru^. . . 129, i ; 1 



Anodonta 1 8< 



edentula 



" grandis 



" imbecillus 



antennae 185, 1 89, 2 \~. 251, 312 



Anthomyid fly 



Anthophysa 



Anthony, Maude H 214, 215 



Anuraea 299, J 



Aphanizomenon 297, 



apical buds 154, 



Appalachian hills 



applied science 21 



Apsilus 



421 



