(2017) 
-piece of the Rock for your uft ; as alio to fignifie to me the 
time, whenthey intend to uncover it 3 that^ if poffible, we 
may make feme fuch ExperimentSj as you have intimated> 
That parcel of Natural Salt, which the inftrument brought 
up, divers that faw itafliire me, was as hard as AUom^ and as 
pure 3 and when pulverized, became an Excellentj fine and 
fliarpSalt» The firft difcoverer ofit was one Jt?/j/i? y/^i7^jZ>^ of 
Halton^ about Ladj/^daylaf}^ as he wasfearchiog for Coals oo 
the behalf of the Lord of the Soil, lVilliaf>i Markiry of MaV'^ 
bury E^uire. This is all I can at prefent ferve you in 5 only 
Jam confulting diligent and experienced perfons concerning 
the praftife of the Agriculture of this Country^ and hope ere 
long to give you fuch an account as I canj though I cannot 
hope to difcover any thing worth the notice of that truly 
Kojal Society^ It will beenoughto fetisfie my ambitioo, if I 
may but be continued in your thoughts as a Well-wifher to 
fuch Noble perfons and defignso In confidence whereof I 
fubrcribe5&:c. 
An Accompt given by a Florentin Fatrician^ call'd Jo. Bat- 
t\{\diDonms^ concerning a ^ Salubrity of 
'the Countrj about Rome : Extracted out of the ninth Ita- 
lian Giornale de Letterati 5 and Enghjlit ^ fol- 
lows^ 
T^'^^ Campagneofl?(?^e5 f which is that Traft ofLandg 
"|_ that is deflitate of Inhabitants and Trees^ and extends 
it felf for many miles, taking m Latium^ and part of the an- 
tient Sabins^ and Tufcany.) would be of great ufe to the 
State, and of fubfiftence tothepeoplej if it could be Inhabi- 
ted without that great danger to health, which now 'tis lb 
much noted and fear'd for 5 Phyfitians efleeming, that from 
the Summer- Solftice unto the Autumnal Equinox, the Air of 
it is fo bad and noxious, that it would be great raftinefi to 
dwell there : A malignity^ which io former Ages it was free 
from^at kaft,in that Cicero^ who^ as appears by his Letters 
H h 2 Hvei 
