xlviii I N T R O D U C T 1 O N. 
I took a large red-winged locufl of the 
Cape, opened its belly, and, pulling out its 
inteftines, filled the cavity with cotton ; and 
in that ftate I fixed ic to the bottom of a box 
with a pin, which pafled through its thorax. 
It remained there for five months ; and at the 
end of this period it ftill moved both its legs 
and its antennse. _ 
I transfixed other locufts in the fame man- 
ner, without, however, opening their bellies 
as in the former cafe ; and, to try if I could 
ftifle them, I put into the box in w^hich they 
were enclofed camphor and fpirit of turpen • 
tine, and they lived there notwithftanding 
feveral days. 
" If you tear a leg from a fly," fays the phi- 
lofopbical author of Etudes de la Nature^ " it 
moves about as if it had fuftained no lofs. 
" When deprived of fo confiderable a mem- 
ber, it neither faints nor is convulfed ; 
emits 
