Glyceria 42 



Qlypototendipes ...*.. 33 



Gold fish and gold fish culture •. 91 



Gold varieties 91, 198 



Qoiqphonenia •• 44 



Goosander 193 



Grain seeds 137 



Grains, brewer's 138 



Grasses, reed 42 



Grasses, street 42 



Gravel algae 44, 45 



Gravel bed hatching 112 



Gravel filter 65« 



Graylings 93, 106 



Grebe, tufted 192, 193 



Green algae 153 



Green fertilization 158, 172, 200 



Grid boxes, Eckstein's 68 



Groats , lupine 133 , 143 



Groats of the food grains 133 



Groats , Wollhand-crab 143 



Gross yield 189 



Growing methods, in carp culture , •••• 80 



Grcming methods in trout culture 121, 122, 123 



Growth 3, 5, 6 



Growth factors ••*.. • 5 



Growth food and maintenance food 132 



GroY/th in the tropics 4 



Growth metabolism 1, 2 



Growth power of the trout 105 



Growth requirement 3, 4 



Guano 170 



Guide figures for stocking 131 



Guide figures for stocking hibernation ponds 184 



Guide figures for stocking transport utensils 187 



Gull (tern) 206 



Gull, river 208 



Gyrodactylus 204, 211 



Gyttja 59 



Half barrels 171 



Hand scythe 153 



Hardness, carbonate 56 



Harrow 160 



Hatchery 114 



Hatcheiy arrangement 113 



Hatchery, water for the 114 



Hatching in gravel bed 112 



Hatching, initial period of • 115 



Hatching, second stage of 115 



Hatching small eggs, von dem Borne apparatus for • 112 



Hawk, reed •• 193 



Health control 78, 194 



Hearts 141 



Heat 26, 47 



Heat value 19 



Heath and moor water 163 



Hectare yield and fish stock density 129 



Hectare yield and maintenance requirement •.* 129 



Helix auricularia (ear snail) 13 



Helper fish breeder 70 



Hemoglobin content 200, 205 



Hereditary factors 7 



242 



