260 ON THE GEOLOGY AND STATISTICS 
Too much of the potato raised, and too httle of the turnip. 
And scarcely any attention given to direct the streams by 
irrigation over their grass-lands. 
In the Anglesea portion of the Menai Basin we met with 
some striking contrasts to that of the Carnarvon side. In 
Anglesea, the great body of rocks, being of a softer, more 
yielding transition-slate, afforded soil in abundance ; and 
we therefore had a richer vegetation, better grain crops, a 
larger and heavier breed of cattle and sheep 
That, though the climate of the whole basin of the 
Menai be subject to frequent gales from the south- wTst, 
yet it is far from being a cold climate. In winter, the con- 
tiguity of the sea moderates the cold, and from that cause 
very seldom is an intense frost experienced. Wherever 
shelter can be afforded, we found that many delicate 
plants would live and thrive well. And the longevity of 
the people, in almost all parts of the basin, proved the ge- 
neral salubrity of the climate. 
That in Anglesea we had one of the primitive rocks, 
granite ; and most of those of the transition ; and had even 
many of the secondary, accompanied by an upper and 
lower strata of limestone, — the one, the lowest, the moun- 
tain, — the other, the upper, the carboniferous; and over 
these we had workable beds of coal. Peat also we observed 
to abound in Anglesea, and marl of all kinds. 
But the most valuable of all the mineral productions, 
as no workable slate was found, was copper, which for 
many years was a great source of wealth to the proprietors, 
and of etiiployment for the miners. 
That the shores of this island yielded the Alga marina, 
wdiich, before the Scotch kelp was used, was burned and 
prepared for market. 
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