51 
primary stratified rocks. 
th / ^ rains, torrents, and inundations ; at 
on 1 piobably acting ovith intense violence, 
M as ling down and spreading forth, in the 
^ gravel, upon the 
oin o the then existing seas, the materials of 
mary stratified rocks, which, by subsequent 
- posLire to various degrees of subterranean heat, 
became converted into beds of gneiss, and mica 
ate and hornblende slate, and clay slate. In 
e etntus thus swept from the earliest lands 
into the most ancient seas, we view the com- 
mencement of that enormous series of derivative 
strata which, by long continued repetition of 
similar processes, have been accumulated to a 
thickness of many miles.* 
The total absence of organic remains through- 
Biitish Report on Geology to the 
-t of Scienc? 1832 , 
the igneous important principles of 
nmdern discoveries’ 'htd demonstrated by 
Leibnitz. » in fi ’ c , anticipated by the universal 
presents us with Tmaste 1 Leibnitz 
perhaps even in tV. ^ sketch of his general views, and, 
down more clearly difficult to lay 
oecessarily comZ. ! Positions which must be 
Pbenoraena in great theory, attributing geological 
attributes the nn' sure to central igneous agency. He 
of the crust of fundamental rocks to the refrigeration 
accords with tl nucleus ; an assumption which well 
of the fundamlnt"?"’ universally admitted igneous origin 
•fve slaterr u «f^"oture of the primi- 
pears to prove gradation of these formations ap- 
at gneiss must have undergone in a greater, 
