Pearl fishing in Ireland was of some consequence in the seventeenth century. Speaking of the Slaney River, Solomon Richards, in a description of Wexford about the year 1656, said: “It ought to precede all the rivers in Ireland for its pearle fishing, which though not abundant are yet excellent, for muscles are daily taken out of it about fowre, five and six inches long, in which are often found pearles, for lustre, magnitude and rotundity not inferior to oriental or any other in the world.”[[197]] In 1693 Sir Robert Redding wrote that there were four rivers in the county of Tyrone in northern Ireland which abounded in pearl-mussels, all four emptying into Lough Foyle and thence into the sea. They were also to be found in several rivers in the adjacent Donegal County. Redding gave an interesting description of the fishery:

In the warm months before harvest is ripe, whilst the rivers are low and clear, the poor people go into the water and take them up, some with their toes, some with wooden tongs, and some by putting a sharpened stick into the opening of the shell; and although by common estimate not above one shell in a hundred may have a pearl, and of these pearls not above one in a hundred be tolerably clear, yet a vast number of fair merchantable pearls, and too good for the apothecary, are offered to sale by those people every summer assize. Some gentlemen of the country make good advantage thereof, and I myself, whilst there, saw a pearl bought for £2, 10s. that weighed 36 carats, and was valued at £40, and had it been as clear as some others produced therewith it would certainly have been very valuable. Everybody abounds with stories of the good pennyworths of the country, but I will add but one more. A miller took a pearl, which he sold for £4, 10s. to a man that sold it for £10 to another, who sold it to the late Lady Glenanly for £30, with whom I saw it in a necklace; she refused £80 for it from the late Duchess of Ormond.

The young muscles never have any pearl in them. The shells that have the best pearls are wrinkled, twisted, or bunched, and not smooth and equal, as those that have none. And the crafty fellows will guess so well by the shell, that though you watch them never so carefully, they will open such shells under the water, and put the pearls in their mouths, or otherwise conceal them. Yet sometimes when they have been taking up shells, and believing by such signs as I have mentioned, that they were sure of good purchase, and refused good sums for their shares, they found no pearl at all in them. Upon discourse with an old man that had been long at this trade, he advised me to seek not only when the waters were low, but on a dusky, gloomy day also, lest, said he, the fish see you, for then he will shed his pearl in the sand; of which I believe no more than that some muscles have voided their pearls, and such are often found in the sands.[[198]]

MADAME NORISCHKINE
NÉE STRAUDMAN		DUCHESSE ELIZABETH
(CONSTANTIN)		DAUGHTER OF GENERAL SOBELIEFF
FIRST COUNTESS BEAUHARNAIS

For several years following 1760, the Scotch pearl fisheries were of considerable local value. The zoölogist, Thomas Pennant, wrote of them several times in his “Tour of Scotland.” Referring to the Tay and Isla rivers, then as now the center of the Scotch pearling, he states: “There has been in these parts a very great fishery of pearl, got out of the fresh-water muscles. From the year 1761 to 1764, £10,000 worth were sent to London, and sold from 10s. to £1 6s. per ounce. I was told that a pearl had been taken there that weighed 33 grains. But this fishery is at present exhausted, from the avarice of the undertakers. It once extended as far as Loch Tay.”[[199]] And he adds later that, some years preceding, a pearl fishery was prosecuted in Loch Dochart with great success and the pearls were esteemed the fairest and largest of any.

From 1770 to 1860 the pearl resources of Scotland remained almost dormant, and Scotch pearls were rarely met with in the markets. In 1861 a German merchant, who was acquainted with the beauty of these gems, traveled through the districts of Tay, Doon and Don, obtaining a great number which the poor people kept for their own pleasure, not esteeming them of any market value, and interested the fishermen in searching for the mussels. The seemingly high prices which he paid and the abundance of the pearls sent hundreds of persons to the rivers and small brooks. Those who were otherwise employed during the day devoted hours of the long summer nights to diligent search after the coveted shells; while boys and old persons, who were without regular avocations, waded day after day where there was a probability of reward. In the course of a short time pearls, good, bad and indifferent, reached the originator of the movement at Edinburgh, from Ayrshire, from Perthshire, and from the Highland regions far beyond the Grampians. He was soon the possessor of a collection which, for richness and variety, had seldom been surpassed. A trade in these gems was developed, the patronage of royalty was obtained, and once more Scotch pearls became fashionable, and their vogue was enhanced by the fondness which Queen Victoria entertained for them.

In addition to the rivers named, pearls were found in the Forth, the Teith, the Ythan, and the Spey in eastern Scotland. The summer of 1862 was most favorable for pearling, owing to the dryness of the season and the low water, and unusually large quantities of pearls were found, the prices ranging ordinarily from 10s. to £2 6s. Queen Victoria is said to have purchased one for forty guineas; others were bought by Empress Eugénie and by the Duchess of Hamilton. A necklace of them was sold for £350 in 1863.[[200]] The value of the entire catch in Scotland in 1864 was estimated at £12,000 to the fishermen, the yield being unusually large in that season owing to the unprecedented drought which permitted access to the deep beds of the rivers. In some of the streams the resources were quickly depleted, but in others the fisheries yielded profitable returns for many years. While most of the pearls were small, some of them were choice and of considerable individual value, ranging from £5 to £150, and £500 is said to have been paid for one fine specimen.

The pearl-mussel of the British Isles (Unio margaritifera) has a thick, coarse and unsightly shell, from 3 to 7 inches in width and 1½ to 2½ inches in length from the umbo to the lip. The rough exterior is dark brown, and it is sometimes twisted, distorted and barnacled.

It generally lies scattered and detached over the pebbly bottoms, but it also exists in reefs or beds which are sometimes of considerable extent. These occur usually where a stretch of water is still and deep, and oftentimes where the depth places the mussels beyond the reach of the fishermen. Apart from the pearls it contains, the mussel is of no economic value except that in some localities the mollusk is used for bait in cod-fishing.