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