Sanguinicola (bloodworm) 2(77 



Saponins 58 



Saprolegnia attack 200 



Saturation value of oxygen ^9 



Saw for s tubble or cliunps 162 



Sawdust , 133, 13A, 138 



Sawdust, beechwood 138 



Sawdust, poplar wood • 138 



Sayomyia ( tufted midges ) , 12, 33 



Scale forms of the carps 72 



Scaled carps 72 



Scales, age determination on 8, 9 



Schistocephalus (band worm) 209 



Scirpus lacustrls (bull rush) Al, ^2 



Scorpion, water- 3A 



Scythe, angle 156 



Scythe, hand 154 



Scythe, jointed , 15/^, 154.«, 155 



Scythes, source of supply for 153, 154. 



Sea-eagle 193 



Sea fishes 99, 123, 133, 136, 139 



Sea fished, preparation of 134 



Sea mussels 95 



Sea trout (SaLno trutta) 93 



Sea swallow (tern) 193, 208 



Seasonal composition of intestinal contents ., 12«' 



Second stage of hatching 115 



Secondary effects of phosphate fertilization 169 



Secondary foods .....* 133 



Secondary nutrition 12 



Sedges 42, 153 



Seeds of legumes 137 



Selecter, self 113*, 117 



Selection of breeds 77, 105 



Selection of small eggs 117 



Selection of trout eggs 118« 



Sensory physiology of the fishes 15, 16 



September fingerlings 122, 123 



Setting out feeding-competent trout brood 121 



Setting out of nursery fed trout brood 121, 122 



Sex maturity, beginning of 3 



Sex maturity of trout 102 



Sex products, artificial obtaining of 106, 109 



Sex ratio with trout 102, 105 



Sexual figures in trout 105 



Shasta rainbov; trout 95 



Sheatf ish, dwarf 14 



Shipment, live 184, 1H5, 188 



Shipment of dead fishes •> 188 



Shipment of eggs 109, 117 



Shipment of live fishes 193 



Shipment of pike brood 92 



Shipping utensils for fish 185* 



Shore-animal eaters 11 



Shore crustaceae 11 



Shore quotient « 47 



Shrew, water- 193 



Shrimps 95, 133, 134, 136, 142 



Sialia 12, 33, 34 



Sida 11, 13, 32, 34 



Side-line fishes 89, 150 



Side-line management 190 



253 



