^74 
NATURAL HISTORT. 
poles of feeking its food, and performing, 
every other fiinftion of its being. 
Eyes and anteune . — The eyes of the fly 
tribes are two little crefcents,'or immovable 
caps, around the head of the infett ; and con- 
tain a gi'Mt number of mimite eyefe, icrolTing 
each other in the form of lattice-work. Cu- 
rious obfervers relate that they have counted 
feveral thoufands in each combination. Le- 
wcnhock calculated aS many as 8000. The 
caufe of their eyes being fo numerous, is to fup- 
ply the defedt of vifion arifing from their eyes 
being immovable.. Thus infedrs have eyes ia 
every diredlion. How admirable muft their 
light be, which enables them to difeern ob- 
jedls, with their innumerable quantity of 
eyes, with as little confulion as ctirer ani- 
mals do with two !' Their antennse are fmall. 
horns proj^dling from their head, in fuch a 
manner as to preferve the fight of fo many 
fixed eyes from being injured- 
Motion . — The admirable mechanifm in 
thefe that creep, the curious oars of thofc 
that fwim, the incomparably formed feet of 
thofe that walk, the llrength and elaftic force 
of thofe that leap, and. the talons of thofe 
that dig,, afford the moft ample matter for 
contemplating the endlefs wifilom of the 
Creator. Each is particularly adapted to the 
kind of motion peculiar to the refpedtive in- 
fedl ; which is exemplified, in the grafshop- 
per, water-beetles, crickets, <&:c- To ren- 
der their progrels through the air as eafy as; 
joffihle^ 
