OF NATURE. >7 
manner mixes with water from ores de- 
ftroyed. 
The muria faxatilis Syf. Nat. 14. 6. a kind 
of talky ftone yielding fait in the parts that 
are turned to the fun, is diflolved into fand, 
which falls by little and little upon the earth, 
till the whole is confumed ; not to mention 
other kinds of foj/ils. LaHly from thefe there 
arife new fojfils , as we meritioned before, lb 
that the deHru&ion of one thing ferves for 
the generation of another, 
Teftaceous worms ought not to be pa fled over 
on this occafion, for they eat away the hardeH 
rocks . That fpecies of Jhell fijh called the razor 
Jhell bores thro’ Hones in Italy, and hides itfdf 
within them *, fo that the people who eat 
them are obliged to break the Hones, before 
they can come at them. The cochlea F. S. 
1299. a kind of [nail that lives on craggy 
roch y eats, and bores through the chalky 
hills, as worms do through wood. This is 
made evident by the obfervations of the ce- 
lebrated de Geer. 
i 6. 
.1 1 
