A SYSTEM OF 
H 
h. Whitifli Yellow, is dug at Balfberg iii 
Skone in Sweden, and in the Venetian 
territories. 
€, Flefh-coloured, found in loofe mafifes iii 
the corn-fields in the province of Upland 
in Sweden. 
J. Reddifil-brown, found in the ifland of 
Oeland, the province of Jemtland^ at Rett- 
wick in the province of Dalarne, and 
at Kimnekulle in the province of Wefter- 
gottland in Sweden. 
€, Grey, at the fame places. 
/. Variegated with many colours, found in 
Italy, at Blankenburg, and many other 
places, and is particularly called Marble 
* Though it may difpleafe many^ yet I mufl own,' I can*^. 
not find any charaders whereby a marble is to be diftinguilh- 
.ed from a limellone | and I infill upon it, that nothing but 
the colours and the texture of the particles diftinguilh the 
kinds of limellone. But as Nature has eftabliftied no rank by 
colours, and has made every folid limellone equally capable 
of a polilh, before they are fpoiled by decaying or decompof- 
ing ; it is, therefore, out of this fpecies of folid limellone, that 
fuch as llrike the fancy moll, ought to be chofen for orna- 
ments, under the name of Marble. 
‘ It belongs to the fubterranean geographers to examine, if 
this folid limellone is ever found othervvife than in flrata, and 
without being mixed with any heterogeneous bodies, that 
likewife have been changed into a caicareous fubllance. 
Here, in the northern parts of the w'orld, it is only found in 
fuch a manner as Ihews it was formed in llrata, by water’s 
taking up and carrying its particles, and afterwards depofit- 
ing them in form of a fediment, jull as a llime or mud 
(which is the finell particles of pounded rocks) gathers to- 
gether at the llamping mills ; and as they are thus formed id 
the water, there always are heterogeneous parts along with 
them. Thefe heterogeneous fubltances are, however, in too 
fmall a quantity, to be capable of having changed the whole 
mafs into a calcareous fubllance (as feme pretend) ; not to 
mention thofe circumllances, which, in other refpedls, make 
fuch an opinion very improbable, 
g, Blackj 
