IMilMARY STRATIFIED ROCKS. 57 
to deny the 
thp ® ®^^®teiice ot life and organization upon 
Unrip ^ interior of our planet, 
the^in ^ igneous fusion. “ Who,” says 
gemous and speculative Tucker, (Light of 
Nature, book iii. chap. 10). ..can reckon up all 
or infinite wisdom can contrive, 
inilar^'^t ^ impossibility of organizations dissi- 
know« ^^Perience? Who 
wlntr'-^'' cavities lie within the earth, or 
witlm'''°” ""^’eatures they may contain, endued 
with senses unknown to us, to whom the streams 
of magnetism may serve instead of light and 
hose of electricity affect tliem as sensibly as 
unds and odours affect us? Why shoulcf we 
bodies r there should he 
whom ffr to 
bones and the natural element, whose 
their hlooT^'^u^^^ composed of fixed earth, 
others made^^ molten metals? Or 
by questions of this kind 
pLr^rtl ° ? existences, or to 
tive Pow . on the bounds which crea- 
its own on ^ pleased to impose on 
the kw?, “ “"'y “-at as 
la now regulate the movements and 
