LIST OF ILLUSTRATIONS. 



DIA.PHRAGM FOR OYSTER PONDS.— RYDER. 



Page. 



Fig. 1. — Box for diaphragm for oyster, side view 20 



2 — Box for diaphragm for oyster, end view 20 



3. — Box for diaphragm for oyster, end view 20 



4. — Bos for diaphragm for oyster, top view 20 



5. — Box for oyster pond, vertical section 20 



6. — Box for rearing oy.ster spawn 20 



7.— Box for rearing oyster spawn 20 



THE ALBATROSS ENGINE.— BAIRD. 



Fin. 1. — Torsian diagram 148 



2. — Tiirsian diagram 148 



3. — Torsian diagram M8 



4.— Indicator diagram 148 



5. — Indicator diagram 148 



6, — Indicator diagram 148 



ELECTRIC LIGHTING.-BAIRD. 



Fig. 1.— High-speed engfne 153 



2. — Pressure-regulating valve 154 



3.— Djrnamo 155 



4. — Lamp socket 155 



5.-SafetypIug 156 



6.— Safety plug 156 



7— Safety plug . . 156 



8. -Block for plug- 157 



FISH TRANSPORTATION.— BORNE. 



Fig. 1. — Tank for transporting tish 168 



2. — Tank for transporting fish 168 



FISHWAY.-NOWICKI. 



Fig. 1. — Movable ftshway at Kurczyn 210 



FISH HATCHERY— WORTH. 



Plate I. The striped bass hatchery at Weldon, N. C 225 



FISH CATCHING PLANT.— RYDER. 



PlatkIL— Bladderwort {Utrlculana vulgaris) 261 



SALMON FISH-HOOKS.— MALMGREN. 



Fio. 1. — Hook taken from salmon in Kumo River 325 



2. — Hook taken from salmon near Uleaborg 323 



3.— Hook taken from salmon in Ulea River 323 



4. — Hook taken from salmon near Christinestad 325 



XU 



