( 734 ) 
of different fpecles, diverfityof figure being ufually a mark of 
a Tpecifical dirtinflion ; but fince the texture of their fubftance 
appears to be wholly the fame, and we find no qualities either 
by thefmeil or tafte which iBanifeft any fuch diverfity, it iray, 
perhaps, be as hard to make them out to be diftinft fpecies, as 
to fljew a fpecifical difference bet v?ixc feveral Snow-blolToms. 
Confidenng the reafon of chat ftrange and mangled diforder 
which thefeplanrs ufually lie in,fome of thciii appearing to have 
been depreft in their infant growth, others to have been broken 
after they were come to iheir full confiftency,&c. I gather it to 
be this: Whilft thefe planes were growingjt he clay wherein they 
grew w^as foft as a Quag mire , thefe probably requiring fuch 
a fubftance to fupporc their growth, as Coral does Sea-water : 
afterwards as they began to fettle to a Stony confiftency, and as 
part of the clay became of a rocky nature, the whole mafsfank 
irom its firfl pofition^ and the moiftute pafllng away made fome 
concavities, wafhing down fome broken pieces of thofe ftones 
with it;and lumps of clay and other ftones/alling down through 
thofe crannies, added to their confufion , being very apt to be 
difordered by (he leaft concuflion , either whilft they were in 
their firft growth,or after they were become Spar, their joy nts 
being very tenderly fee together ; and hence rhefe Stones are 
generally found in Leirey places (as they call it) that is, Ca- 
vernous. 
The beft way to explicate their Vegetation will be, jfr/?,to re- 
preftnt the feveral ways of the growthof Spar, which (to pafs 
ty the account from //e/'z/^'//^., that Snow by long lying and 
continual frofts. is hardned into Spar) I obferve to be three: 
Either it takes a being from Steams alone ; or from Steams coa- 
gulating either Dew as it falls on the ground, or Waters ifTuing 
irom the joy nts of Rocks underground^ or it grows from Earths 
and Clays^ We have an Inftance of the jirjl in many Grotto's, 
where fome Spars, produced from^teams alone , hang from the 
roofs like Icicles ; Lead-oar often growing in the fame manner ; 
and as this Spar grows downwards,fo in many places from the 
fides of it,therei(rue little Plants of Spar, which flioot upwards 
contrary to the growth of the other: Thus Spars grow from 
fleams about the Baths at Buda in according to the re« 
lation of Dr. Browne. An example of the fecond is given in the 
Tranfa{t»N.S3f.4o6S. wher^ 'tis faid, that ata certain place in 
