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234
GEMS AND PRECIOUS STONES IN THE
are now. " To form an opinion," says Dr. Mitchell, "of the frequency of their occurrence, I mention a circumstance that happened on Long Island. A man desirous of making a col­lection of clam pearls gave notice through the neighborhood that he would pay a quarter of a dollar each for those of proper size ; and in the course of two months he received two dozen. The clam-mongers in the city save the pearls they find on open­ing the shells, and sell them to persons who come to the stalls in the market to purchase them." He himself possessed a pur­plish one weighing 69 grains, which surpassed all that he had ever heard of.
The manufacture of wampum to be sold or traded to the Indians is an old American industry, and the manufacture is still in the hands of the Campbell family, who originated it. The first to engage in this industry was John Campbell, who was succeeded by Abraham Campbell, and by the survivors of the four sons of Abraham, the youngest of whom is now over seventy-five years old. Mrs. Erminnie A. Smith described the manufacture,1 and took a series of the beads, to represent the industry, to the New Orleans Exposition. She says :
" Originally the grandfather of the Campbells, who resided at Tea Neck, N. J., would make trips to Rockaway in a boat which, when they returned, was loaded with clams (Venus mercenaria), the meat of which was given to the country people in return for opening the shells. The blue ' heart'of the clam, as it was called, was cut out and made into beads used for the groundwork of the wampum belts. At one time this industry flourished so that thousands of dollars were paid out weekly to buy the beads made by the white country-people who manufactured them at the time. The hole of the bead was made with an arm-drill and they were polished or ground on grindstones. The white beads were not made from the clam, but from conch-shells (Strombus gigas), which they have always imported from the West Indies. The young clams cannot be used, and the old have so decreased in number that this branch of the industry has been greatly reduced."
When Mrs. Smith visited the Campbells she had with
1 Science, Vol. 5, p. 3.