NATURAL 
grains, 22353, grains of pure gold, 
and 1 #3; of silver. Some of the 
gold is intimately blended with, 
and adherent to quartz; some (it 
is said) was found united to the 
fine grained iron stone, but the 
major part was entirely free from 
the matrix; every piece more or 
I*ss rounded on the edges, of vari- 
sos weights, forms, and sizes, from 
th: most minute particles up to 
@ »z. 17 dwt.; only two pieces 
are known to have been found of 
superior weight, and one of those 
is 5, and the other 22 ounces. 
I much regret not having been 
present when the work was going 
on, that] might have seen the gold 
as found, before prepared for sale by 
breaking off any extraneous matter 
that adhered ; for in that state, a pro- 
per attention to the substances with 
which it was united, and a subse- 
quent diligent’ inspection of the 
several ves that range through 
the mountain, might assist towards 
the discovery of that from whence 
it was detached. 
I shall shortly return to Eng- 
land ; and on my arrival, will send 
specimens of the gold, and of the 
different substances of the moun- 
tain, to be deposited (if you think 
proper) in the colle¢tion of the 
Royal Society. 
And am, with great respe€t, &c. 
ABRAHAM MILLs. 
The bearings are all taken by the 
compass, without allowing for the 
variation, ; 
Besipes these accounts of the 
Id found in Ireland, the follow- 
ing information has been reccived™ 
on that subject. 
William Molesworth, esq. . of 
Dublin, in a letter to Richard 
HISTORY. [389 
Molesworth, Esq. F. R. S. writes, | 
that he weighed the largest piece 
of gold in his balance, both in air 
and water; that its weight was 
200Z. 2dwt. 21 gr. and its speci- 
fic gravity, to that of sterling gold, 
as 12 to 18. Also that Richard 
Kirwan, Esq. F.R.S. found the 
specific gravity of another specimen 
tobe as 13 to 18. Hence, as the 
gold was worth 4!. an ounce, Mr. 
William Molesworth concludes that 
the specimens are tull of . pores 
and cavities, which increase their 
bulk, and that there are some ex- 
traneous substances, such as dirt 
or clay, contained” »in those ca- 
vities. : 
This opinion was discovered to 
be weil founded, by cutting 
through some of the small lumps. 
Sranespy ALcHoRNE, Esq. his 
majesty’s assay-master at the Tower 
of London, assayed two specimens 
of this native gold. The first ap- 
peared to contain, in 24. carats, 
21% of fine gold ; 
1% of fine silver ; 
% of alloy, which seemed to be 
copper tinged with a lirtle iron. 
The sccond sfecimen differed 
only inholding 214 instead of 21¢ 
of fine gold. 
Major John Brown, of the royal’ 
engineers, transmitted to the right 
hon. Thomas Peiham, a sketch of 
the spot where the gold was tound,’ 
which Mr. Pelham has obligingly 
permitted to be enzraved, for the 
use of the Royal Society.  C. B. 
LeU Eb DEERE My PEE 
On the Cd flt on high Mountcins, 
and at great D.pths. From Dr. 
Hunter’ sTranslation of Euler's Let. 
ters to a German Princess. 
. » 48 . Sy 
IT appears yery surprizing, that . 
Cie3 WE 
