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than a mile from the gold mine: from him and his brothers I learnt, that about 25 years ago, or more, one Dunaghoo, a schoolmaster, refident near the place, used frequently to entertain them with accounts of the richness of the valley in gold; and that this man had used to go in the night, and break of day, to search for the treasure ; and these gentlemen, with their fehool fellows, used to watch the old man in his excursions to the hill, to frighten him, deeming him to be deranged in his intelle&ts: however, the idea of his treasure did at last ačtually derange him. John Byrne told me, that about 11 or 12 years ago, when he was a boy, he was fishing in this brook, and found a piece of gold, of a quarter of an ounce, which was fold in Dublin; , but that upon one of his brothers telling him it must have been dropped into the brook by accident, he gave over all thoughts of searching for more. Charles Toole, a miner at Cronbane, tells me, he heard of this discovery at the time but gave no Vol. XXXVIII.

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P.S.. I am told the name of the brook, where the gold is found, is, in Irish, Aughatinavought.

A mineralogical account of the Native Gold lately discovered in Ireland. In a Letter from Abraham Mills, so to Sir Joseph Banks, Bart. . B. P. R. S.

Cronebane Copper Mines, near Rathdrum, Nov. 21, 1795. SIR, THE extraordinary circumstance of native gold being found in this vicinity, early excited my attention, and led me to seize the first opportunity that presented itself, after my late arrival here, to inspect the place where the discovery was made. I went thither on Tuesday, the 3d of this month, with Mr. Lloyd, of Havodynos, and Mr. Weaver. The former having given you some account of the circumstances which attended the original discovery, and, since he left me, a favourable day having enabled me to take a feC c cond

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barony of Arklow, and county of

Wicklow, on the lands of the earl
of Carysfort, wherein the earl of
Ormond claims a right to the mi-
nerals, in consequence (as I have
been informed), of a grant in the
reign of king Henry the second,
by prince John, during his com-
mand of his father's forces in
Ireland; which grant was renew-
ed and confirmed by queen Eliza-
beth, and again by king Charles
the second. -
The summit of the mountain is
the boundary be ween the counties
of Wicklow and Wexford; seven
inglish miles west from Arklow,
ten to the south-westward of Rath-
drum, and fix south-westerly from
Cronebane mines; by estimation
about six hundred yards above the
level of the sea. It extends W by
N and E by 3, and stretches away
to the north-eastward, to Rally-
coage, where shafts have formerly
been sunk, and some copper and
In gnetic iron ore has been sound;
and thence to the NE there extends
a tract of nineral country, eight
miles in length, running through
the lands of Ballymurtagh, Bally-
gahan, Tigrony, Cronebane, Con-
nery, and Kilmacoe, in all which
veins of copper ore are found;
and terminating at the date quar-
ry at Baluabarny.
On the highest part of the

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£y,

just above its consiuences with that

the southward, and the lands, of
Ballinagore to the northward, of
the ford, where the blue shiftus
rock whose joints are nearly verti-
cal, is seen ranging ENE and
WSW, including small strings of
quartz, which contain ferruginous
earth. The same kind of earth
is also seen in the quartz, contain-
ed in a vein from ten to twelve
inches wide, ranging ENE and
WSW, and hading to the south-
ward which has been laid open in
forming the Arklow road.
Here the valley is from twenty
to thirty yards in width, and is
covered with substances washed
down from the mountain, which

on the sides have accumulated to

the depth of about twelve feet. A thin stratum of vegetable soil lies uppermost; then clay, mingled with fine sand, composed of smail particles of quartz, mica, and shiti; bencath which the same substances are larger, and constitute a bed of gravel, that also contains 110dules of fine grained iron stone, which produces 50 per cent. of crude iron : incumbent on the rock are large tumblers of quartz, a variety of argillite and shifitis; many pieces of the quartz are perfectly pure, others attached to the shiftus, others contain chlorite, pyrites, mica, and ferruginous earth ; and the arsenical cubical pyrites frequently occurs, imbedded in the blue shiftus. In this mass of matter, before the workings began, the brook had formed

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gold has been found lying on the surface. The situation of the place, and the constant command of water, do, however, very clearly point out the great facility with which the gold might be separated from the trash, by adopting the mode of working practised at the beft managed tin stream works in the county of Cornwall; that is, entirely to remove (by machinery) the whole cover off the rock, and then wash it in proper buddles and sieves. And by thus continuing the operations, consiantly advancing in the ravine towards the mountain, as long as gold should be found, the vein that forms its matrix might probably be laid bare.

The discovery was made public, and the workings began, early in the month of September last, and continued till the 15th of O&tober, when a party of the Kildare militia arrived, and took possession by order of government; and the great concourse of people, who were busily engaged in endeavouring to procure a share of the treasure, immediately defitted from their labour, and peaceably retired. Calculations have been made, that during the foregoing period, gold to the amount of three thousand pounds Irish sterling was sold to various persons; the average price was three pounds fifteen shillings per ounce ; hence eight hundred ounces appear to have been collected within the short space of

six weeks.
The gold is of a bright yellow
colour, perfectly malleable; the
specific gravity of an apparently
clean piece 19,0so. A specimen,
attayed here by Mr. Weaver, in
the moist way, produced from 24
- grains,

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