Pearling scene on White River, Arkansas
The fishermen are using scissor tongs from flat-bottom skiffs
Pearling camp on upper Mississippi River
Crowfoot drags are shown on the flat-bottom skiffs at the river bank
During the height of the Arkansas pearling excitement in 1897, the speculative spirit was so rife that many persons—unwilling to engage in the labor of fishing—purchased unopened mussels from the fishermen in the venture for aleatory profits. The price for these ranged from twenty-five cents to $2 per hundred, and fluctuated rapidly, according to the immediate results, increasing several hundred per cent. in a few minutes under the influence of a valuable find. One fisherman sold mussels to the value of $28 in one day, and thought he had made an excellent bargain until over $1000 worth of pearls were revealed when the shells were opened.
While some pearlers work in southern streams throughout the year, generally the season is coincident with warm weather, when the water is low and the work may be conducted with comfort. In the vicinity of Muscatine and Rock Island about twelve years ago, large quantities of Unios were taken during the winter when the river was frozen over, the men working with long rakes from the surface of the ice.
When only a few mollusks are taken, they are readily opened with a knife to permit a search for the pearls. But where there are many, as in the Mississippi River, the opening is facilitated by heating. After a sufficient catch has been obtained, they are subjected to the action of steam in a box, or they are heated in an ordinary kettle; a few minutes of steaming or cooking are sufficient to cause the shells to spring open. The fleshy parts are removed and thoroughly searched, the interior surfaces of the shells are likewise examined for attached pearls, and the liquid at the bottom of the vessel is strained so that nothing of value may escape.
This cooking is a convenient method of opening the shells, but unquestionably it injures the quality of many pearls. In some instances when the shells open, the pearls fall out and descend to the heated iron bottom, where they are quickly injured. The surface of one exposed too long to the heat shows numerous minute cracks, which increase in number and size when subjected to changes of temperature. Some choice gems have in this manner been rendered almost valueless. If a jacket boiler, or one with a double bottom, were used, there would be less danger of injuring the pearls; or a similar result could be accomplished by placing a wire screen a few inches above the bottom.
Several fishermen have endeavored to devise mechanical methods for removing the pearls and thus avoid the painstaking search among the flesh tissues now necessary; but these contrivances have not proved satisfactory, and have not been employed except experimentally.
In the Mississippi and its tributaries, where the fishery is very extensive, after the pearls have been secured, the shells are sold to button manufacturers and to exporters at prices ranging from $4 to $40 per ton, according to species, quality, and market conditions. This provides a fairly remunerative income to the fishermen even if no pearls whatever are found. But in the small tributaries and where the mollusks are less numerous, the shells are of little value owing to the expense of bringing them together and conveying them to market.