46 
Copper . 
of the rocks with much labour and expence, and is capable 
of containing 30 vessels of two hundred tons burthen ; 
it is greatly exposed, and dangerous of access during high 
northerly winds, which drive a heavy sea up the neck of 
the harbour. The two companies employ 15 brigs from 
100 to 150 tons burthen, besides sloops and other craft* 
all of which lie dry at low water. 
The various articles, the produce of the mines, which 
are exported, are the following : 
I. Coarse regulus of copper from the smelting-houses. 
II. The richer copper ore roasted. 
III. The dried precipitate of copper from the vitriol pits* 
IV. Refined sulphur. 
V. Ochre. 
VI. Alum. 
VI L Green vitriol. 
The town of Amlwch, which about thirty years ago 
had no more than half a dozen houses in the whole pa- 
rish, now supports a population of four or five thousand 
inhabitants; and was at present, being market day, 
thronged with miners and country people. After dinner 
we walked along the sea shore, climbing the steep slate 
rocks, whence the water below appeared of a beautiful 
green, and so transparent as to shew the shelving rocks to 
a great depth beneath. [Aikin. 1 Nick. Jour. 4to. 
From Amluch I went to Beaumaris, a seaport in An - 
glesea ; and from thence in a vessel laden with roasted 
copper ore to Liverpool. At Liverpool, I went to the 
copper works in the neighbourhood, and also to those at 
Warrington and Macclesfield in Cheshire ; being desi- 
rous while I was about it, to trace the manufacture as far 
as I could. But those works were not easy of access, 
and I could obtain no precise information : what occurs 
to me on the subject at present, is contained in the fol- 
lowing remarks : 
