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pufs, that the earth cannot eafily be feparated in a 
direction * perpendicular to the horizon, if we take 
any confiderable portion of it together 5 but in the 
horizontal direction, as there is little or no adhefion 
between one ftratum and another, it may be fepaiated 
4 2. Thofe fiffures which arc at fome depth below 
the fur face of the earth, are generally found full tf 
water: but all thofe that are below the level of the 
fea, muft always be fo, either from the oozing of the 
fea or rather of the land waters between the ftrata. 
’ The ftrata of the earth are frequently very 
much bent, being raifed in fome places, and de- 
preffed in others, and this fomeumes with a very 
quick afcent or defcent ; but as thefe afcents and 
fcents. in a great meafure, compenfate one another, 
if we take a large extent of country together, we may 
look upon the whole fet of ftrata as lying nearly ho- 
rizontally. What is very remarkable, howevei, in 
their fituation, is, that from mod, if not all large 
trafts of high and mountainous countries, the ftrata 
lie in a fituation more inclined to the horizon, than 
the country itfelf, the + mountainous countriestong 
* What I fald before of thofe deep clefts, in which metals are 
found, w.11 not afted this conclnfion ; for they are corf^ -lly 
different from either P er P end,c “ " °' f P c Uy, or other foft matter ; 
are frequently interrupted by hra. y ^ rubWh> cr with 
Ps,‘"h”t adhcie’as firmly to botb “**• " 
if they compofed one appearances, not only that 
t It fccms vel 7 probable, from m y 1 P ft rata „f the 
the mountainous countries are formed lout ot h „ e form ed 
earth, but that fomctimes the 'g out 
