Trout foodstuffs, preparation of ....* 13A 



Trout, growth power of 105 



Trout incubation arrangements 113« 



Trout , injury of spawning 102 



Trout in the carp-extension pond 93 



Trout, Juvenile dress of 9U, 96 



l^out, main selling time 125 



Trout mast ponds 126^ 



Trout nutrition 13 



Trout, nutrition assimilation 15 



Trout, parent fishes ( see spawning trout ) 



Trout-pond management , fundamental 69, 70 



Trout-pond surface, division of 125 



Trout ponds, organic fertilization of 172 



Trout ponds, phosphate fertilization of I69 



Trout races 105 



Trout, rainbow 13, 95, 96*, 12/1, 191 



Trout, relationship 9A 



Trout , ringed 188 



Trout, sea (Salmo trutta) 93 



Trout, selection and rearing for spawning 98 



Trout, sex maturity of 102 



Trout, sex ratio with 102, 105 



Trout, sexual figures in 105 



Trout, Shasta rainbow 95 



Trout, size of spawners 102, 10^, 105 



Trout, spawning 98, 99, 100, 101, 102, I05 



Trout spawning male 100, 101 



Trout, spawning of brook (brown) 95 



Trout, steelhead 95, 96 



Trout, sterility of old 105 



Trout, vitelline sac brood 115* 



Trypanoplasma 205, 210 



Tublfex, see mud-tube worms 31, 35 



Tufted grebe 192, 193 



Tufted midge, larvae (Sayomyla) 12, 33 



Two pond method (Dublsch method) 80, 89 



Typha 42 



Ultraviolet irradiation 117 



Under-current apparatus (Califomian) I09, 109«, 110 



Underwater plants IH. 



Unloading of fishes 177 



Unpacking of fish eggs 118 



Unsorted management 76, 77 



Urea 160 



Utility value 23 



Utricularia (bladderwort) 192 



Value, biological 18, 19 



Value, utility 23 



Valvata 12, 32, 35 



Vegetation-animal eaters H 



Vegetation animals * • 28, 35 



Veronica beccabunga (brookllme) i^3, 152 



"Vita Groats", soya bean 137 



Vltamine content of natural nutrition 26 



Vitamines 25, 197, 198 



Vltelline-sac brood of the carp 83« 



Vitelline-sac brood of the trout US* 



Vitelllne-aac dropsy 102, 197, 199* 



Vitelline-sac nutrition 4« 6 



Vitelline-sac trout brood •• H5* 



Vol vox ^^5 



258 



