the
Perthshire Tay pearls were taken, which gained so much notoriety in the
middle of the eighteenth century when some fifty thousand dollars worth
were sent to London from this stream in three years.
Scotch
pearl-fishing was revived in i860 and some fine ones were sold to Queen
Victoria, the Empress of the French, the Duchess of Hamilton and
others. Pearl-mussels have been found in Lochs Rannoch, Tay, Lubnaig
and Earn, also in the Don, the Leith and other streams. Some are found
in the Welsh streams, and the river Bann in Ireland was noted for the
fine pearls found in it. Many years ago there was a pearl fishery at
Omagh in the north of Ireland. An old writer claims that Caesar
obtained pearls of such bigness in Britain that he tried the weight of
them by his hand.
The
fishers wade for them in shallow pools, or thrust sticks between the
open valves, or drag branches over them, for as soon as anything
enters between the two shells they close upon it at once. The mussels
are found generally set up in the sand of the river-bed with the open
side, if the current is very strong,
256