446 



Miscellaneous Intelligence. 



On the Stability of satellites revolving in narrow orbits ; by Daniel Vaughari. 

 Researches on the ammonia- cobalt bases ; by Dr. Wolcott Gibbs and Dr. F. A„ 

 Genth. 



On the Production of Rotary Currents in air and other gases, with a special illus- 

 tration of a rotary current rendered luminous by flame and incandescent charcoal ; 

 by Dr. D. B. Reid. 



On the Altitude and Physical Structure of the Appalachian System in the Region 

 of the Black Mountains in North Carolina, compared with those of the White 

 Mountains in New Hampshire; by A. Guyot. 



On Some Experiments on visual direction ; by John Brocklesby. 



On the Phenomena of the discharge of ordinary electricity ; by Joseph Henry. 



Redetermination of the atomic weight of lithium ; by J. W. Mallett. 



Account of the Typhoon of October 28, 1854, at the Bonin Islands; with a sketch 

 of its barometric curve, and notices of other cyclones ; by John Rogers, Com. U. S. 

 Navy : Communicated by W. C. Redfield. 



Whirlwind and Tornado vortices ; by W. C. Redfield. 



Motion of a Body upon a solid of revolution, when the force is directed towards 

 a point upon the axis ; by Benjamin Peirce. 



On the Physical Peculiarities of Comets ; by Stephen Alexander. 



A Simple Method of correcting the common nautical method of " double altitudes" 

 of the sun, moon, or a planet, for the change of declination between the observa- 

 tions ; by W. Chauvenet. 



On the annual duration of sunlight on the earth in different latitudes ; by L. "W". 

 Meech. 



Researches concerning the Comets of 1783 and 1793; by Dr. Peters. 

 The Fundamental numeric series, and divergence of radiating parts, reduced to a 

 simple organological idea ; by Dr. T. C. Hilgard. 



Note on the Rotation of a rigid body; by J. B. Cherriman. 



On the Interpretation of some Cases of apparent geometric discontinuity ; by J. 

 B. Cherriman. 



On the Forms of the Atoms of the simple substances of chemistry, as indicated 

 by their atomic weights; by Stephen Alexander. 



On the Meteorological Phenomena during the epidemic of 1855 at Portsmouth, 

 Va. ; by Nathan B. Webster. 



On the Modification of Noremburg's Apparatus by about 4 or 5 minutes ; by 

 Sanderson Smith. 



On the waters of the St. Lawrence and the Ottawa rivers; by T. Sterry Hunt. 



On Efflorescence from brick masonry ; by E. B. Hunt. 



Report on the Observatory of Toronto; by J. B. Cherriman. 



Results of a Series of Meteorological Observations made at New York Academies 

 from 1825 to 1850 inclusive; by Franklin B. Hough. 



Remarks on the Use of the aneroid barometer; by A. Guyot. 



Experiments on the nozzles of blowing apparatus, made at the Smithsonian Insti- 

 tution ; by Thomas Ewbank. 



II. Section of Natural History and Geology. 



On the Volcanic Phenomena of Kilauea and Mauna Loa ; and on the dynamical 

 theories of earthquakes, etc. ; by C. F. Winslow. 

 On Volcanoes ; by C. F. Winslow. 

 Exhibition of living Gar-pikes ; by J. E. Gavit. 



Notes on the Geology of Middle and southern Alabama ; by A. Winchell. 



Parallelism of Rock Formations in Nova-Scotia, with those of other parts of 

 America ; by J. W. Dawson. 



Proof of the Protozoic xlge of some of the altered rocks of Eastern Massachu- 

 setts, from fossils recently discovered ; by W. B. Rogers. 



On Carboniferous Reptiles ; by Jeffries Wyman. 



Permian and Triassic Systems of North-Carolinia ; by Ebenezer Emmons. 



General Description of the Boundary Line between the United States and 

 Mexico ; with General Notices of the topography, geology, agricultural resources, 

 etc. of the country adjacent ; by W. H. Emory. 



