Vv AND REVIVED. 133 
animals whofe ftru@ture is fo fine and delicate, 
that, unable to bear the immediate impreflions of 
the air, they always live under cover. Such are 
the Miners, a fpecies of infects fo named from 
inhabiting the interior of the leaves of trees, 
where they live almoft always concealed and pro- 
tected from the influence of the air. ‘The conjec- 
ture would perhaps require an experiment which 
Thad not an opportunity tomake. We fhall im- 
mediately fee, that wheel animals revive in vacuo. 
One might put fome of thofe furviving with- 
out fand into an exhautted receiver for the water 
to evaporate, and obferve if they revived on being 
wet; which, according to my fuppofition, they 
fhould, becaufe in that fituation they could fuffer 
nothing from the agitation of the air when the 
water evaporated (1). 
We come to another inquiry more important 
than the preceding: I have hitherto fuppofed, 
that the wheel animals peri/bed when the fluid 
dried. It is true they exhibit every appearance 
of death; the body is dry and disfigured; the 
13 ufe 
(1) Not only has the air a fenfible effe& on the tender 
bodies of animals, and they endeavour to efcape from it, 
but there are feveral, even thofe deftitute of vifion, which 
cannot bear the influence of light, a fubftance infinitely 
more rare, and retreat from it as from a malignant agent. 
—-T. 
