200 INSECTS 
(a) Many have died of old age, one season being the natural 
period of their existence. 
(b) The birds have been feeding upon them all summer 
and have consumed immense numbers of them. 
(c) The rest have sought shelter in the ground, under 
leaves, grasses, and rubbish, in crevices of buildings, and 
elsewhere. Some of them will hibernate successfully in 
these places, and the rest will never wake up again. 
