Animalcules, irtieel 11, 32, 36 



Animals of the bottom , 28, 35 



Animals , reophilic 31 



Animals, stagnophilic 31 



Animals, vegetation 28, 35 



Anurea 11, 32 



Apparatus , long-stream 111« 



Aprons , oiled-fabric 108 



Aquaria 180 



Argulus, see carp louse 183, 210 



Arm lighter ( chara ) 4-3 



Arrangement of the hatchery c 113* 



Arrow weed (Sagittaria ) LH 



Arsenic 58 



Artificial feeding in nutrition of pond fishes 15 



Asellus aquaticus 32 



Assimilation 27 



Associations , fishery 70, 191 



Autotrophic ponds 31 



Autumn fishing out of one-year carps 85 



Azidotrophia 30, 51 



Azolla 42 



Azotobacter 4-5, 170 



Back swimmer 34 



Bacteria 28, 45, 46 



Bacteria, aerobic 46 



Bacteria, anaerobic 45 



Bacteria, denitrifying 46 



Bacteria, destructive activity of 45 



Bacteria, nitrifying 45 



Bacteria, nitrogen accumulating 170 



Bacteria, nitrogen-binding 46 



Bacterial count in mud 45 



Bacterial count in water 45, 171 



Bacterium cyprinicida 201 



Band worm (Schistocephalus ) 209 



Barley 133, 137, 143 



Barrels for fishes 185» 



Barrels, half 171 



Barrels, standing 184 



Basal metabolism 1, 2, 4, 5, 23 



Basket net 173 



Baskets, weir 86, 192 



Bathing of fishes 204, 209, 211 



Bath, Ij-sol 212* 



Beaker glass bonitization, fertilizer requirement 168 



Beechwood sawdust 138 



Belt, conveying 177* 



Berula 152 



Biological value 19 



Biology of production, principles 1 



Bithynia 12, 32, 34, 35 



Biting gnats , mosquitoes 33, 36 



Bitter cress 152 



Bittern, dwarf 192 



Bivalve Crustacea, see Ostracoda 11, 12, 13, 32 



Black-necked diver 192 



Bladderwort (Utricularia) 192 



Bleak (Albumus lucidus) I40 



Bleak (Blicca bjBrkna) 140 



Blood 133, La 



Blood, freshening in carps 71, 78 



231 



