LIST OF PLATES 



SALMON ASCENDING A FALL . Frontispiece 



PLATE FACING PAGE 



I. CROWDED GROUP OF GUILLEMOTS ON A 



STACK OF ROCK 7 



II. TERNS OR SEA-SWALLOWS FLYING ON THE 



SHORE n 



III. FOUR OPEN-SEA ANIMALS ... 64 



IV. GLAUCOUS GULL AT LERWICK . . 67 

 V. OPEN-SEA ANIMALS 73 



VI. THE STORM PETREL IN THE OPEN SEA . 84 



VII. THE FLOOR OF THE DEEP SEA . . .105 



VIII. DEEP SEA NEAR SHORE . . . .115 



IX. A FRESH-WATER POOL . . . .140 



X. A FRESH- WATER POOL . . . .158 



XI. SNOW-COVERED MOORLAND IN WINTER . 220 



XII. A CAVE IN*DALMATIA .... 228 



XIII. DIAGRAM OF FIVE HAUNTS OF LIFE . 231 



XIV. BATS FLYING IN THE TWILIGHT . . 254 



XV. FLYING DRAGONS, DRACO VOLANS, OF THE 



FAR EAST 260 



XVI. GULLS IN FLIGHT 266 



XV 



