The copper-bearing rocks of Lake Superior are reported by the geologist of Wisconsin to extend almost uninterruptedly across that State. In the Nemakagon river masses of native copper have been found, and that country may become a rich copper region. The second congress of Americanistes will meet in Luxembourg September 10 to 13 next. Information and tickets may be had in England of Mr. F. A. Allen, 15 Fitzwilliam Road, Clapham, S.W. It is to be hoped there will be less speculation and more research than at the last congress. Persons desirous of procuring brook and salmon trout for restocking the waters of New York State can do so by addressing Seth Green at Rochester, who will send them on the payment of the travelling expenses of a messenger and the giving of full directions as to route and whom to call on. A class in plain cooking was lately formed at the New York Cooking School. The course consisted of twelve lessons. The tuition fees for girls who bear their own expenses are fifty cents for a single lesson, or $5 a course; for charitable societies, in behalf of their protegées, $5 a course; for ladies sending their cooks for instruction, $10 a course. A shower of stones is reported to have fallen February 16 in Social Circle, Walton county, Georgia, varying in size from a hen's egg to that of a man's two fists, irregular in shape, dark grayish color, interspersed with a bright, shiny substance resembling mica. The shower was brief, extended over about four acres of ground, and followed an explosive sound. Panic fears are likely to prove the destruction of the Spitz dog. The belief that this species is peculiarly liable to hydrophobia, and inclined to bite on small provocation, has led a great many owners to deliver up their Spitz dogs to the police for destruction. In one city, East Brooklyn, there was said to be 4,000 of them, but the number is now much reduced. Is it not possible that a similar panic among brutes may account for the extinction of some wild species of animals? According to one of the German papers, the Zoölogical Garden at Cologne has been the scene of a tremendous fight between two Polar bears. They were male and female, and the latter, being overcome, was finally dragged by the male to the reservoir of water in the den, and held down until she was dead. Then her lifeless body was dragged around the place for some time by her furious conqueror. CURRENT LITERATURE.