/J\r A GARDEN. 
169 
volving motion, renders it almost invisible. Cater- 
pillars, too, in great plenty — miniature porcupines 
with fretful quills on end, and some naked even as 
they came into the world. This one, called the 
earth-measurer, has drunk himself green with 
chlorophyll so as to escape detection. Vain pre- 
caution, since eccentric motion betrays him to keen 
avian eyes, when, like the traveller's snake, he 
erects himself on the tip of his tail and sways 
about in empty space, vaguely feeling for some- 
thing, he knows not v/hat. And the mechanical 
tortrix that rolls up a leaf for garment and food, 
and preys on his own case and shelter until he has 
literally eaten himself stark naked ; after which he 
rolls up a second leaf, and so on progressively. 
Thus in his larval life does he symbolize some 
restless nation that makes itself many successive 
constitutions and forms of government, in none of 
which it abides long ; but afterwards some higher 
thing, when he rests motionless, in form like a 
sarcophagus, whence the infolded life emerges to 
haunt the twilight — a grey ghost. There is no end 
to rolled-up leaves, and to the variety of creatures 
that are housed in them; for, just as the "insect 
tribes of human kind " in all places and in all 
ages, while seeking to improve their condition, 
independently hit on the same means and inven- 
tions, so it is with these small six-legged people ; 
