In northern Russia pearls are secured in the provinces of Livonia. Esthonia, and Olonetz, and in the grand duchy of Finland, where they have been sought after for three centuries or more. Most of them are bluish gray in color and they attain a maximum weight of about twelve grains. Although not equaling the oriental gems, these pearls are of good quality and are highly esteemed, not only by the peasants but by the nobility and by the royal family of Russia. For reference to most of the historical data relative to the fishery in Livonia, we are indebted to an account written by H. Kawall.[233] So long ago as 1612, Dionysius Fabricius compared the pearls of Livonia with those of India. Said he: “Nor should I omit to mention that there are rivers in Livonia wherein large pearls are produced in shells; and I myself have seen some as large as the oriental, especially when they are well grown. But because the peasants of this region are too ignorant to determine with certainty when they mature, they are unable to collect them properly, and therefore the pearls have become rarer.”[234] According to Mylius,[235] in the seventeenth century, when Livonia belonged to Sweden, the pearl resources received attention from the government. Charles IX of Sweden decreed October 22, 1694, that the pearls therefrom should not be exported but should be sold to officers of the crown at a definite price. In 1700, an inspector of the fishery in Livonia, whose name was Krey, reported that the peasants collected pearls secretly from the small rivers and brooks, and forwarded them to Moscow for sale. As the peasants objected to selling them to the king’s commissioners at the prices fixed, the fishery soon dwindled in extent. However, on the annexation of Livonia to Russia in 1712, and the removal of these restrictions, it revived and became of local importance during the last years of the reign of Peter the Great. In 1742 the Livonian fishery was reorganized at the suggestion of a Swede named Hedenberg. Furnished by the government with funds and an escort, he began an exploration of the pearl-bearing waters, commencing with Lake Kolk, where he secured many pearls of value, some of which were presented to Empress Elizabeth.[236] The fishery then came into great favor. To the nobility of Livonia, in whose domains the brooks were situated, the crown accorded sixty rubles for each half ounce of choice pearls secured, and for every half ounce of the second class, thirty rubles; but the nobles were obliged to renounce their rights to the fisheries and to permit the lakes and brooks to be guarded by imperial soldiers. Owing to the very great destruction of mussels which yielded no pearls, a reward was offered to any one who would discover a method of determining from external characteristics those individual shells which contain gems of value.