638 



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. i^ew 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 Ter- 

 ritories. Vol. II. Pp. 304, with numerous 

 Plates. Washington : Government Printing- 

 office. 



Water and Water-Supply. By W. H. 

 Corfield. Pp. 145. New York: Van Nos- 

 trand. 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. lO. Philadelphia : 

 Collins, printer. 



First Annual Report of the Johns Hop- 



kins University. Pp. 34. Baltimore : Boyle 

 & Son, printers. 



American Lsporidas. By J. A. Allen. 

 Pp. 8. 



Pharmacy in Germany. By F. Hoff- 

 mann. Pp. 12. Philadelphia : Merrihew 

 & Son, printers. 



MISCELLANY. 



ExUibitioa of Scientific Apparatns. 



There will be opened next April, at the 

 South Kensington Crystal Palace, London, 

 a universal exposition of scientific instru- 

 ments. 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, Gali- 

 leo's telescopes, Lavoisier's balances, Frank- 

 lin'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 De- 

 partment of Arts and Sciences. The home 

 committee consists of one hundred scientific 

 men, with the lord-chancellor. It is stated 

 in the Moniteur Induslrlel Beige that an in- 

 vitation has been sent to every civilized na- 

 tion to take a part in the exhibition. 



Fossil Conifcrfe. Prof. J. Vv^ Dawson, 



in the American Journal of Science for Oc- 

 tober, invites correspondence from geolo- 

 gists who have examined the remains of 

 coniferous trees in the carboniferous rocks 

 of the United States. Hitherto, he says, 

 little attention seems to have beftn given 

 in this country to these remains of ancient 

 vegetation. In Nova Scotia, several species 

 are known, and are to some extent charac. 

 teristic of definite horizons. In the car- 

 boniferous 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 dis- 

 covered; for instance, the curious dicty- 

 oxylon of Williamson, found also in Nova 

 Scotia, would probably reward patient slic- 

 ing of trunks showing structure. The De- 



