Careful meteorologic records have now been kept at the open ports for more than five years; at Che-mul-po, on the Yellow Sea (the seaport of the capital, Söul); at Fusan, to the south; and at Gensan, to the northeast. Stations are needed on the Yellow Sea coast farther to the northward, at the extreme northeast, at points in the interior, and especially on the island of Cheju, or Quelpaert, whose weather reports may some day prove as valuable to the Japanese as those from Bermuda would now be to the navigator of the western waters of the Atlantic. All the above mentioned places are easily accessible and doubtless soon will receive attention. In fact, to the navigator of these regions this island of Quelpaert is almost of the importance that Hatteras is to the navigator of our own coast. As an important factor of Korea's future prosperity, and one that will enter largely into the determination of her future position among the nations of the east, may be mentioned her mineral resources. These yet remain in an almost undeveloped condition. The most easily accessible deposits and out-croppings, which are worked by the natives in primitive ways, afford evidence of an abundant and varied supply of the useful ores and minerals widely distributed throughout the whole extent of the land. Many localities, moreover, are well known to the people for their especial products. Thus the Phyöngyang province, in the northwest, facing China, possesses abundant deposits of coal, iron, and lime. Samples of this coal, which is but little used by the people, were collected several years ago from twelve different localities, and I remember that some of the Phyöngyang gatherings were tested on board the U. S. S. Alert, but were found to have suffered so greatly from exposure to the weather as to be comparatively valueless, even for experimental purposes. Limestone is common in this district, and in the town of Phyöngyang I have noticed the use of caustic lime in the streets as a disinfectant. The iron produced at Yöngpyön, fifty miles to the northward of this city, which is reduced in the native way with charcoal, is remarkable for its malleability and purity. Inasmuch as all these deposits are of very great extent and lie near the sea coast, and in proximity to waters easily navigable by larger craft, it may be assumed as probable that the time will soon arrive when the iron of Korea will largely supply the ship-yards and machine shops of northern China. Silver is found in at least four localities; copper is worked in paying quantities in two; galena is widely distributed; and zincblende has been found near the capital. Sulphur is said to occur in Kyöng-sang-do; no ore of mercury is known to the Koreans, who import their supplies of the metal and its preparations from China.