With trousers rolled up, the people waded into the shallow water and sought for the mussels in the mud and sand on the bottom. Many pearls were secured, but none approached in size or value the two above noted.[320] During 1857, the New York City market received about $15,000 worth of pearls from these waters, and in addition many were sold locally or retained as souvenirs of the hunt. At the low price of pearls existing then, this figure would mean possibly ten times as much at present, or $150,000. The active search soon depleted the resources of the little stream, so that in the following year the reported value of the yield was only a few thousand dollars. The decrease continued until in a few years practically every mussel was removed, and at present scarcely a single Unio is to be found in these waters. The interest in pearling extended far from the place of the original find; and in Pennsylvania, Ohio, and even as far away as Texas, search was made in the streams. In the Colorado and its tributaries, about 20,000 were found in a short while. Most of these were small and unattractive, but a considerable number were reported “as large as pepper-corns” and a few “the size of a small rifle ball,” the number decreasing with the increase in size. A correspondent in the “Neue Zeit” wrote: Sometimes they are round, sometimes cylindrical, elliptical, hemispherical, or of an altogether irregular shape. The finest have a milk-white, silvery sheen; many, however, are reddish yellow, bluish brown, or quite black; the last naturally have no value whatever. As to their value, there is considerable uncertainty, and it can easily be understood that those who have a great number of them in their possession greatly overestimate them. So far they are found principally in the Llano and the San Saba.[321]