INDEX 



195 



Net, the use of the drift, 127, 131 



, the use of the trammell, 129 



, the use of the seine, 130 



Noctiluca, 156 



North Sea, the intensity of fishing 

 in the, 135 



OTOLITHS in the skull of the Plaice, 



116 



, how to remove the, 118 



Otter and Salmon, 166 



trawl, the, 133 



Oyster, the, 146 



, " White-sick," 147 



, " Black-sick," 147 



spat, 147 



cilia, 147 



velum, 148 



farm, the work of an, 149 



, the worst enemy of the, 150 



, the Whelk as an enemy of the, 



151 

 , the damage done by Mussels 



to, 151 



PARR, Salmon, 58 



" Pecten," the, 145 



Perch, the signs of alarm of the, 5 



, the signs of fear of the, 6 



, description of eggs of the, 11 



, the protective colouring of the, 



32 



, brilliant colour of fins, 37 



, the difficulty of photograph- 

 ing, 179 



Phosphorescence, the cause of, 156 

 Photographic excursions, 139 

 Photography, methods of fish, 158 



et seq. 

 Pike, the intelligence of the, 1 



, sign of mental agitation of 



the, 3 



, the attitude of attack of the ; 4 



, experiment on, concerning 



coloration, 30 



, the natural change of colour 



in the, 35 



Pilchard as a sardine, 121 

 Pilchards, seining for, 130 

 Pipe fish, the parental care of the 

 male, 16 



, the mimicry of the long, 34 



Plaice, the floating eggs of the, 12 



Plaice, the life history of the, 115 



, age when, spawn, 116 



, otoliths in the skull of, 116 



, how to tell the age of, 117 



Plankton, description of, 154 

 Plates, the best photographic, 188 

 Port Erin biological station, 113 

 Post-larval stage of flat fish, the 



remarkable change in the, 112 

 Protective colouring of fish, 22 et 



seq., 33 



Protophyta, 153 

 Protozoa, 153 



RADULA of a Whelk, the, 151 



Rainbow Trout, 84 



Ray, description of egg of the, 11 



, the flattening of the, 43 



" Redd," the making of a, 49 

 Reflection in fish photography, 178 

 Reflex camera, usefulness of, 188 

 Rings of growth of a salmon, 61 

 Roach, bright colour in fin of, 37 



, the early history of the, 102 



, time of hatching of eggs, 103 



, a perfect fish in six weeks, 



105 



Roach's eggs, the destruction of, 18 

 Row-hound or Dog-fish, 39 

 Rudd, as seen under water, 27 



, colour of, 37 



Ruffe, the dorsal fin of the, 37 



SALMON, description of egg of the, 11 

 , how fly is seen by, 28 



as the prince of sporting fishes, 



55 



, the origin of the, 56 



, the leap of the, 56 



parr, 58 



parr in a comatose state, 59 



smolt, 59 



, the rings of growth of a, 61 



, how to tell the age of a, 62 



, the life of a, 64 



, rate of growth of a, 65 



fisheries, how to improve the, 



67 

 , problems in connection with 



the habits of, 69 



, natural food of, 72 



, the size of the eggs of, 73 



, how, eggs are collected, 75 



