LIST OF ILLUSTRATIONS 



PAGE 

 IN THE HIMALAYA . Frontispiece 



MAP OF WESTERN HIMALAYA Facing 4 



THE HARVESTING ANT AND THE CARNIVOROUS ANT . . 13 



A VALLEY IN THE HIMALAYA 24 



A MOUNTAIN VIEW IN THE HIMALAYA ,,44 



COMMON ANTS OF HAZARA ,, 60 



EXPERIMENT WITH COMMUNICATING ANT 68 



SPIDERS OF HAZARA Facing 88 



DIAGRAM OF THE PARTS OF A GEOMETRICAL SNARE ... 88 



LOSS OF PARALLELISM RESULTING FROM DIVISION OF ONE TURN OF 



VISCID SPIRAL IN ONE SEGMENT IO2 



LOSS OF PARALLELISM RESULTING FROM DIVISION OF ONE TURN OF 



VISCID SPIRAL IN TWO SEGMENTS 103 



DIAGRAM OF REVERSAL OF SPIRAL IIO 



REVERSAL OF SPIRAL IN AN ECCENTRIC SNARE . . . .Ill 



THE HEART OF THE HIMALAYA Facing 124 



THE PEAKS UNDER FRESH SNOW ,, 164 



CICADA (Platylomia brcvis) . . . . . . . .212 



DRUM OF CICADA . . . . . . . . . .215 



DIAGRAM TO SHOW ESSENTIAL PARTS OF MUSICAL ORGAN OF CICADA 2l6 

 THE FLYING-SQUIRREL ....... Facing 24! 



THE BENGAL MONKEY AND EMOTIONAL EXPRESSION IN THE 



LEOPARD. (l) CONTENTMENT 245 



EMOTIONAL EXPRESSION IN THE LEOPARD. (2) FEAR. (3) ANGER 248 



EMOTIONAL EXPRESSION IN THE LEOPARD. (4) DISTRESS. 



(5) EAGERNESS , 252 



EMOTIONAL EXPRESSION IN THE LEOPARD. (6) ATTENTION. 



(7) AFFECTION ,, 256 



THE INDIAN PARADISE FLYCATCHER AND NEST . . . ,, 262 



THE BROWN-BACKED INDIAN ROBIN AND NEST , t . 26^ 



xii 



