The next No. of this Journal will be published on the first of Sept 



CONTENTS. 





Pa 



Art. I. On Terrestrial Magnetism ; by Prof. William A. Norton, 1 



II. General Geological Distribution and probable Food and Cli- 

 mate of the Mammoth ; by Prof. R. Owen, 

 IIL Note upon Carex loliacea, Linn., and C. gracilis, Ehrh. ; by 



A. Gray, 



IV. Description of Three New Carices, and a New Species of 

 Rhynchospora ; by John Carey, 



V. Observations on the Whirlpool, and on the Rapids, below the 



Falls of Niagara; by R. Bakewell, - 



VI. On certain Improvements in the Construction and Supply of 

 the Hydro-oxygen Blowpipe, by which Rhodium, Iridium, or 

 the Osmiuret of Iridium, also Platinum in the large way, have 

 been fused ; by Prof. Robert Hare, M.D., 



VII. Description of Two New Species of Fossil Footmarks found 



in Massachusetts and Connecticut, or, of the Animals that 

 made them ; by Rev. Edward Hitchcock," - - 



VIII. Glycocoll (Gelatine Si 



composition ; by Prof. E. N. Horsford,— (continued,) 



IX. On the Potato Disease, 



X. Report on Meteorites ; by Prof. Charles Upham Shepard, 



XI 



XII 



Cooling from a state of Igneous Fusion ; by James D. Dana, 



by T. S. Hunt, 



IHARDT ; 



SCIENTIFIC INTELLIGENCE. 



Chemistry 



13 



19 



22 



25 





46 



5 

 



/•* 



93 



Congelation of Mercury in three seconds, by virtue of 

 the spheroidal state, in an incandescent cracibh On a new Test for Pru 

 Acid, and on a simple Method of preparing the Sulphoeyanid f Ammonium, b 

 Prof. Liebig, 101 .—Separation of Alumina from Oxyd of Iron : Detect: 

 minute traces of Alcohol : On the Acid Reaction of the Gastric Juice, b 

 C. G. Lehmann, 102.— Equivalent number of Titanium, 103— On ti 

 pounds of Iron with Carbon, by M. Karstex, I04.-Note on the Action of a 



lution of Caustic Soda upon 



«oiu 



neware Jar by Trenham Reei 10 



On 



the Detection of Cotton in Linen, by G. C. K,*dt. I06\~IV rirlcation nd 

 fertilization of Soils, by F. Kuiri \ n i, i,_. , L **r*. 



I 



so 



vs_- 



: An* drous Alcohol, by M. C 

 On the Compounds of Ph ; d with Aniline, I V 



in X rations of Gl} *eoli a \ A 



F<; 



of Contents 



gene, by Mr. Tb I 



J - 



f rfiwt 4 









• m / 



