| PLATE | ||
| I. | PAIR OF RED GROUSE IN SUMMER WITH YOUNG CHICKS | Frontispiece |
| II. | MALE GROUSE, BLACK TYPE, IN FULL WINTER PLUMAGE | to face page 34 |
| III. | MALE GROUSE, RED TYPE, IN FULL WINTER PLUMAGE | "34 |
| IV. | MALE GROUSE, WHITE-SPOTTED BIRD OF RED TYPE | "34 |
| V. | MALE GROUSE, RED TYPE, IN FULL WINTER PLUMAGE WITH A FEW BLACK-CENTRED FEATHERS OF THE PREVIOUS AUTUMN PLUMAGE |
"35 |
| VI. | MALE GROUSE, SHOWING MARKED BEGINNING OF THE AUTUMN PLUMAGE ON HEAD AND NECK |
"36 |
| VII. | MALE GROUSE CHANGING FROM WINTER TO AUTUMN PLUMAGE | "36 |
| VIII. | FEMALE GROUSE, BLACK TYPE, IN AUTUMN PLUMAGE | "44 |
| IX. | FEMALE GROUSE, RED TYPE, CHANGING FROM WINTER TO AUTUMN PLUMAGE | "45 |
| X. | FEMALE GROUSE IN FULL BREEDING PLUMAGE | "45 |
| XI. | FEMALE GROUSE IN FULL SUMMER PLUMAGE | "46 |
| XII. | FEMALE GROUSE, RED TYPE, FEATHERS FROM FLANKS | "46 |
| XIII. | FEET OF RED GROUSE: (1) NEW WINTER FEATHERS AND NAILS; (2) FULL WINTER PLUMAGE; (3), (4), (5), AND (6) SHOWING STAGES IN MOULTING OF NAILS |
"46 |
| XIV. | FEMALE GROUSE, SHOWING BARE PATCH OF SKIN AND DOUBLE LINE OF BARRED FEATHERS ON ABDOMEN |
"47 |
| XV. | FEMALE GROUSE, RED TYPE, WORN UPPER TAIL COVERTS | "47 |
| XVI. | HEADS OF (1), (2), FEMALE GROUSE; (3), (4), MALE GROUSE; (5) PTARMIGAN SHOWING SUPRA-ORBITAL COMBS |
"48 |
| XVII. | HEAD OF BLACKCOCK SHOWING SUPRA-ORBITAL COMB | "49 |
| XVIII. | MALE GROUSE SHOWING ABNORMAL ERYTHRISM | "60 |
| XIX. | FEMALE GROUSE, BUFF-BARRED TYPE | "60 |
| XX. | FEMALE GROUSE, ABNORMAL YELLOW VARIETY | "60 |
| XXI. | FEMALE GROUSE, GREY VARIETY | "60 |
| XXII. | FEMALE GROUSE, GREY VARIETY | "60 |
| XXIII. | TYPES OF HEATHER | "71 |
| XXIV. | PLANTS EATEN BY THE GROUSE (4 Figures) | "86 |
| XXV. | PLANTS EATEN BY THE GROUSE (4 Figures) | "87 |
| XXVI. | DIAGRAM OF ALIMENTARY TRACT | "101 |
| XXVII. | ALIMENTARY TRACT, CÆCUM, RECTUM, GIZZARD, DUODENUM, SMALL INTESTINE | "102 |
| XXVIIa | ALIMENTARY TRACT IN SITU | "103 |
| XXVIII. | CÆCUM, DUODENUM, ETC. | "104 |
| XXIX. | RECTUM AND SMALL INTESTINE | "115 |
| XXX. | CÆCA | "117 |
| XXXI. | CÆCA AND KIDNEYS | "118 |
| TEXT-FIG. 1. FRACTURED HUMERUS AND SCAPULA RE-UNITED | page154 | |
| "2. THE SAME BONES UNINJURED | "154 | |
| "3. FRACTURED AND RE-UNITED BREASTBONE OF A CARRY HEN | "158 |
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