Sieaons pulverizing machine , large 161* 



Siemons pulverizing machine , small I6l» 



Sieve boxes for fishing out •.... 175*, 176 



Sieve boxes for spleen feeding L49 



Simocephalus 11^ 32 



Size classes of the pond industry , 70 



Size classes of trout fingerlings , 12^. 



Size classes, see also sorting 86, 89, 122, 124, 173, 176» 



Size of the ccmplete carp pond industry 78 



Size, normal 6 



Skeletal malformations 197 



Skin injury I96 



Skin turbidity 203 



Slaughterhouse scraps , 133, 136, 171 



Slide 130, 177 



Slops 138 



Sluice, and sluice installation 6ii, 66«, 67, 68 



Sluice (damming) board 68 



Small animal life, immigration of 35 



Small eggs, selection of 117 



Small eggs , von dem Borne ' s apparatus for hatching 112 



Small fauna and pollution 35 



Small fauna (animals), generations of 36 



Small fauna (animals), living zone placement of the 35 



Small fauna, maxima of 36 



RmnTi fauna, nutrition of the 34 



Small fishes 133, 139 



Small pond management 77, 78, 18^, I90 



Snail, mud, - see Limnaea 32, 3/4, 207, 208 



Snail, sharp-horned - see Limnaea 32, 207, 208 



Snails 80, 99, 133, U3, 162 



Snails, mud 32, 34, 207, 208 



Snow 182, 183 



Soaking of the food 133, 147» 



Sodium nitrate ( Chilian saltpetre ) 170 



Soil, absorption activity of 59 



Soil, colloid content of the , 59 



Soil cultivation I58 



Soil cultivator machine 160 



Soil evaluation by trout culture ••....*.... 125 



Soil, lime content of the 60 



Soil, problems of the 58, 59 



Sorting , 122, 173, 176* 



Sorting apparatus ITl* 



Sorting of one-year carps 86 



Sorting of table carps •.... 89 



Sorting of table trout 124 



Sorting of trout fingerlings ., 123 



Sour water I96 



Source of supply for air nozzles and unit fish holders 180 



Source of supply for counting plate, Brandstetter's 119 



Source of supply for fish-food steamer 135 



Source of supply for G-K paints 110 



Source of supply for oxygen barrels 186 



Source of supply for scythes 154 



Source of supply for sheet zinc 68 



Source of supply for water wheels 152 



Source of supply for Zuger glass brooders 112 



Soya bean extract meal 133, 137 



Soya bean "Vita Groats" 137 



Space factor 47, 83, 99, 124 



Space for brood 114 



254 



