CHAPTER I. THE DESERT PAMPAS ....... 1

CHAPTER II. CUB PUMA, OR LION OF AMERICA 31

CHAPTER III. WAVE OF LIFE ........ 59

CHAPTER IV. SOME CURIOUS ANIMAL WEAPONS ..... 69

CHAPTER V. FEAR IN BIRDS ........ 83

CHAPTER VI. PARENTAL AND EARLY INSTINCTS ..... 101

CHAPTER VII. THE MEPHITIC SKUNK . 116

CHAPTER VIII. MIMICRY AND WARNING COLOURS IN GRASSHOPPERS . 124

CHAPTER IX. DRAGON-FLY STORMS ....... 130

viii Contents.

CHAPTER X. MOSQUITOES AND PARASITE PROBLEMS .... 135

CHAPTER XI. HUMBLE-BEES AND OTHER MATTERS . . . .154

CHAPTER XII. A NOBLE WASP . ,. . . . . . . . 162

CHAPTER XIII. NATURE'S NIGHT-LIGHTS ....... 168

CHAPTER XIV. FACTS AND THOUGHTS ABOUT SPIDERS . 178

CHAPTER XV. THE DEATH-FEIGNING INSTINCT . . . 200

CHAPTER XVI. HUMMING-BIRDS . . . . . . , . . 205

CHAPTER XVII. THE CRESTED SCREAMER . . . . . . . . 221

CHAPTER XVIII. THE WOODHEWER FAMILY 235

CHAPTER XIX. MUSIC AND DANCING IN NATURE ..... 261

CHAPTER XX. BIOGRAPHY OF THE VIZCACHA ...... 289

CHAPTER XXI. THE DYING HUANACO ....... 314

PAGE

CHAPTER XXII. THE STRANGE INSTINCTS OF CATTLE ... 329

CHAPTER XXIII. HORSE AND MAN ........ 348

CHAPTER XXIV. SEEN AND LOST ..,,. 363

APPENDIX ...... 384

INDEX ........- 391