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THE POPULAR SCIENCE MONTHLY.

The American State. By W. G. Dix. Pp. 187. Boston: Estes & Lauriat. Price, $1.50.

Life Histories of Animals. By A. S. Packard, Jr. Pp. 243. New York: H. Holt & Co. Price, $2.50.

How to build Ships. By a Seaman. Pp. 62. New York: Van Nostrand. Price, 75 cents.

Hayden's Geological Survey of the Territories. Vol. II. Pp. 304, with numerous Plates. Washington: Government Printing-office.

Water and Water-Supply. By W. H. Corfield. Pp. 145. New York: Van Nostrand. Price, 50 cents.

Principles of Coal-Mining. By J. H. Collins. Pp. 150. New York: Putnams. Price, 75 cents.

Wages and Wants of Science-Workers. By R. A. Proctor. Pp. 118. London: Smith, Elder & Co.

Imports and Exports of the United States. Washington: Government Printing-office.

Supposed Miracles. By Rev. J. M. Buckley. Pp. 54. New York: Hurd & Houghton. Price, 50 cents.

Circulars of the Education Bureau. Washington: Government Printing-Office.

How to construct a Dairy-Room. By J. Wilkinson. Pp. 26. Baltimore: J. Wilkinson. Price, 25 cents.

The Yucca-Borer. By C. V. Riley. Pp. 23. St. Louis: R. P. Studley.

Bulletin of the National Museum. Also Bulletin of the Geological and Geographical Survey of the Territories. Washington: Government Printing-Office.

Proceedings of the Cincinnati Society of Natural History. Pp. 12.

Through and Through the Tropics. By Frank Vincent, Jr. Pp. 304. New York: Harper & Brothers.

Early Literature of Chemistry. By H. C. Bolton. Vol. L Pp. 10. Philadelphia: Collins, printer.

First Annual Report of the Johns Hopkins University. Pp. 34. Baltimore: Boyle & Son, printers.

American Leporidæ. By J. A. Allen. Pp. 8.

Pharmacy in Germany. By F. Hoffmann. Pp. 12. Philadelphia: Merrihew & Son, printers.

 

MISCELLANY.

Exhibition of Scientific Apparatus.—There will be opened next April, at the South Kensington Crystal Palace, London, a universal exposition of scientific instruments. This exposition will continue for six months. Its object is to bring together as large a number as possible of scientific instruments possessing an historic interest, for instance, Tycho Brahe's astrolabes, Galileo's telescopes, Lavoisier's balances, Franklin's lightning-rods, the remnants of Charles's balloons, Giffard's injector, Leon Foucault's pendulum and gyroscope, etc. All the cost of transportation will be borne by the Department of Arts and Sciences. The home committee consists of one hundred scientific men, with the lord-chancellor. It is stated in the Moniteur Industriel Belge that an invitation has been sent to every civilized nation to take a part in the exhibition.

 

Fossil Coniferæ.—Prof. J. W. Dawson, in the American Journal of Science for October, invites correspondence from geologists who have examined the remains of coniferous trees in the carboniferous rocks of the United States. Hitherto, he says, little attention seems to have been given in this country to these remains of ancient vegetation. In Nova Scotia, several species are known, and are to some extent characteristic of definite horizons. In the carboniferous sandstones of the United States such remains seem to be frequent, but Dr. Dawson has seen no detailed account of them. The subject, he adds, is deserving of the attention of microscopists in the coal districts, as there can be little doubt that several interesting species remain to be discovered; for instance, the curious dictyoxylon of Williamson, found also in Nova Scotia, would probably reward patient slicing of trunks showing structure. The De-