[ 2*3 ] 
Flames and Pillars of Smoak. That ever it has re- 
jetted Stones, or the like, I cannor, by Information 
or Obfervation, affirm 5 the concreted Salts we have 
from it being always found either candying the fuper- 
crefcent Furze, or impatted in the Surface of the 
Earth, at its Eruptions. 
I pray, Sir, pardon my Delay in procraftinating 
the Performance of my mention'd Promife till a fa* 
vourable and ferene Seafon 5 when, if you ftydl com- 
mand it, I may be able to give you fome Account 
alfo of a Stream near this Town, which, on its Bank?, 
in the Summer time, as alfo, being evaporated over 
the Fire, leaves behind it a blue Powder. Its Head is 
thence called by neighbouring Inhabitants, The blue 
Well\ as alfo, of fome fubterraneal Grottoes or Caverns 
in Weredaky about twenty Miles South-weft of this 
Place y where, by a little Hole creeping into the Side 
of a vaft Mountain, is entered a fpacious Cavity, 
chambered with Walls and Pillars of decident 1-api- 
defcent Waters 5 the Hollownefs in fome Places being 
pervious further than any yet has adventured to dif- 
cover; the Darknefs of rhefe Caverns requiring the 
Help of Candles, which are often extinguiflfd by the 
dropping Water. 
1 have employed what Intereft I could make to pro- 
cure fome Quantities, if poffible, of that odd me- 
talline Ore, which I made mention of when with 
you. 
I mention thefe Trifles only out of an Ambition I 
have, if any wife you may judge me capable to 
injoin me any inferior Task of calling in my Mite to 
that Treafury of Knowlege in Things natural, which 
the World, Sir, expetts prefent or future Ages 
F f may 
