VI 



CONTENTS. 



Zoology. — Conspectus Crustacnorum qtias in Orbis Terramm Circumnavi^atione, 

 Carolo Wilkes e Classe Reipublicae Fcederatse Duce, iexit et descripsit Jacobus 

 D. Dana, 276. 



Miscellaneous Intelligence. — On Certain Frozen Leaves, by J. Gorgas, 286. — On 

 the Mechanism and Functions of the Organs of Voice in Man ; with the intro- 

 duction of a case of double utterance, bv Dr. Pettigrew, 287. — The Aneroid 

 Barometer, 288.— Gold at Port Phillip, South shore of Australia, 290 —The Tin 

 Mines of Banca, 291. — Navigation of the Arctic Regions: Type Manufacture, 

 292. — New Mode of copying Engravings, by M. Niepce : Herbaria of New 

 England Plants, 293. — British Museum: Platinum and Diamonds in Califor- 

 nia: Medal to VV. Lasseli, 294.— Obituary.— George W. Whistler, 294.— Ste- 

 phen Endlicher, 299. 



Bibliography — De Candolle's Prodromus Regni Vegetabilis i Pars XIII, Sectio 

 Posterior, 300. — Catalogue of Plants. Native and Naturalized, collected in the 

 vicinity of Cincinnati, Ohio, during the year* 1834-1844, by Thomas G. Lea, 

 302. — The Elements of Botany, by M. Adkjen de Jussieo ; translated by 

 James Hewetson Wilson, F.L.6., &c. : A Manual of Botany; being an 

 Introduction to the Study of the Structure, Physiology, and Classification of 

 Plants, by John Button Balfour, M.D., F.L S., &c, 303. — Circular pre- 

 pared by direction of the Hon. Wm. Ballard Preston, Secretary of the Navy, 

 in relation to the Astronomical Expedition to Chile, by Lieut M. F. Maury, 

 U. 8. N.,303. — Introduction to Meteorology, by David Purdie Thomson. M.D. : 

 A Memoir on the Geological Action of the Tidal and other Currents of the 

 Ocean, by Charles Henry Davis, A.M., Lieut. U.S.N , 305. — Sixty-second 

 Annual Report of the Regents of the University of the Slate of New York: 

 Reports, etc., of the Smithsonian Institution, exhibiting its Plans, Operations, 

 and Financial Condition, up to January 1, 1849: A Collection of Tables and 

 Formulas useful in Geodes> and Practical Astronomy, including Elements for 

 the Projection of Maps; prepared by Capt. T. J. Lee, 306. — Description of a 

 System of Military Bridges with India Rubber Pontons, prepared for the use of 

 the United States Army, by Capt. George VV. Culltm, U. S. Corps of Engi- 

 neers: Transactions of the New York Stale Agricultural Society, with an abstract 

 of the proceedings of the County Agricultural Societies: History and Chemical 

 Investigation of Maize, or Indian Corn, by J. H. Salisbury, 307. — Notes on 

 the Medical Application of Electricity, by William F. Changing, M.D. : 

 Davis's Manual of Magnetism, by Dan Tel Davis, Jr.: Knapp's Chemical 

 Technology, 308.— The Nautical 'Slide Rule, by Paul Cameron: Second 



Report of Experiments on Gunpowder, made at Washington Arsenal in 1845, 

 '47, and 4-\ by Brevet Major Alfred Mordecai : Craig's Universal Diction- 

 ary of the English Language, embracing all the terms used in Art, Science and 

 Literature, 3U ( J. 



List of Works, 310. 



Appendix. — American Association for the Advancement of Science, 311. 





NUMBER XXIV, 



Liquid Bodies ; by Ed. Becquerel, 



Page. 



Art. XXL Notice of the Narrative of the U. S. Expedition to the 



River Jordan and the Dead Sea, by VV. F. Lynch, U. S. N., 317 

 XXIL Second Memoir on the Conducting Power of Solid and 



. 333 



XXIII. Ko Dou Dzu Rokti, or, A Memoir on Smelting Copper, 336 



XXIV. Cartography ; hy Prof. C. Dewey, .... 348 



XXV. On the Diurnal Variations in the Declination of the Mag- 

 netic Needle, and in the Intensities of the Horizontal and 

 Vertical Magnetic Forces ; by Prof. William A. Norton, 350 



