6 CONTENTS. 



METAPHYSICS. 

 Mr. Isaac Orr on iafiaites, ..... 326 



PHYSICS AND CHEMISTRY, MECHANICS AND THE ARTS. 



Correspondence between Doct. Robert Hare and the Editor, on the 

 subject of the Calorimotor and Deflagrator, (see the plate,) 



with an account of the fusion of Charcoal, - - - 94 

 Mr. Henry Seybert's Analysis of the Tabular Spar — Pyroxene and Co- 



lophonite of Lake Champlain, - - - - 113 



Mr. George T. Bowen's Analysis of the calcareous oxid of Tungsten, 



from Huntington, ....-.-. 118 



Rev. Mr. Hitchcock's communication respecting the preservation of 

 Mr. Williams' life, when struck by lightning (with a plate.) Gen. 



Epaphras Hoyt's notice, .... ... 12I 



Mr. L. W. Smith on a case of suspended animation, - - 125 

 Dr. J. Van Rensselaer, on the Natural History of the Ocean, - 128 

 Description of the apparatus used in lighting the Tron Steeple at Glas- 

 gow, (with a plate,) ..-..--. 141 

 Prof. James Rcnwick on the longitude of New- York, - - 143 

 J. L. Sullivan, Esq. on the revolving Steam Engine, ... 144 

 Mr. Robert Eastman's improved Saw Machine, (with a plate,) - 146 

 Mr. Thomas Skidmoreon the formation of flexible elastic tubes, - 153 

 Mr. Isaac Lea on a singular impression in sandstone, - - - 155 

 On the twinkling of the fixed stars, - .... 156 



Mr. Henry Seybert's analysis of the Maclureite, ... 336 

 Mr. George T. Bowen's analysis of the Pyroxene in the vicinity of New- 

 Haven, 344 



Also ofthe Nephrite of Smithfield,R.L . , . ., 346 



Doct. Robert Hare's letter on Alkanet as a substitute for Litmus, Sic. 348 



Mr. Thomas Skidmore on the combustion of Hydrogen in water, 347 

 Doct. Robert Hare on the gales experienced in the Atlantic States of 



North America, - - - - - - - 352 



Mr. George T. Bowen's notice ofthe magnetic effects produced by Dr. 



Hare's Calorimotor, - - - - - - 357 



Editor on the fusion and volatilization of Charcoal, with Professor Gris- 



com's remarks on Doct. Hare's Galvanic Instruments, - - 361 



Mr. Henry Seybert's letter on the Condrodite, .... 366 



OBITUARY.— (Professor Fisher.) ... - 367 



MISCELLANEOUS. 

 Original Letters from Dr, Franklin to Rev. Jared Elliot, - - 157 



INTELLIGENCE AND MISCELLANIES. 



I. Foreign. 



Prices of some minerals in London, ... - 169 



Lithography — Meteorolites, - - - - - 170 



Fossil human bones, .,....-- 171 



Climate of the South of France, ...... 173 



Pressure of the atmosphere — Salamander, new species, - - 174 



Meteorolite— Diamond — Circulating Libraries — Traveller's Society, 175 



