LIST OF ILLUSTRATIONS 



PERCH PALING WITH FEAR (Colour) 



Frontispiece 

 Facing page 



' * I x 



OBSERVATION POND EMPTY ...... 



OBSERVER DESCENDING INTO OBSERVATION CHAMBER 

 LOOKING INTO THE OBSERVATION CHAMBER FROM POND, SHOWING ' 

 HOW THE GLASS BECOMES A MIRROR AND PREVENTS THE FISH 

 SEEING THE OBSERVER ....... 



LOOKING INTO THE POND FROM THE OBSERVATION CHAMBER 

 RAINBOW TROUT; TO SHOW EXTERNAL FEATURES . . . xiv 



VARYING ATTITUDES OF A PIKE ...... 2 



ATTITUDE OF A PIKE SHOWING INTENTION TO ATTACK 



4 



PIKE RIGID WITH EXCITEMENT ...... 



EMOTIONAL ATTITUDES OF A PIKE ...... 4 



A PERCH SHOWING ALARM ....... 6 



PERCH BECOMING PALE FROM FEAR ..... 6 



PIKE AS SEEN IN THE POND . . . . . . . | 



f " 

 PIKE FOLLOWING UP A ROACH . . . . . . ) 



EGGS OF CARTILAGINOUS FISHES ...... 10 



EGGS OF BONY FISHES ........ 12 



MALE STICKLEBACK BUILDING NEST . . . . . ~\ 



MALE STICKLEBACK DRIVING FEMALE TO NEST . . . -14 



STICKLEBACK ON GUARD. . . . . . . .J 



STICKLEBACK ON GUARD. . . . . . . . \ 



STICKLEBACK RESENTING INTRUSION OF THE CAMERA . .16 



STICKLEBACKS DEVOURING EGGS . . . . . .J 



FUNGOID GROWTH ON DEAD EGG ...... 18 



TROUT ALEVINS DESTROYED BY FUNGUS ..... 20 



GUDGEON AS PHOTOGRAPHED IN A TANK . . . . \ . 



GUDGEON AS SEEN IN NATURAL ENVIRONMENTS . . . ) 



DACE, SHOWING ITS DARK BACK, SILVERY SIDE, AND WHITE UNDER- \ 



SURFACE. . . . . . . , . .1-22 



DACE REFLECTING BARS UPON ITS BODY ». . j 



