CONTENTS OF VOLUME XXXVII. 



NUMBER I. 



Art. I. Meteorological Observations during a Residence in Co- 

 lombia, between the Years 1820 and 1830 ; by Col. 



Richard V^right, 1 



II. Remarks on the Trilobite ; by Prof. Green, M. D., • 25 



III. Description of a New Trilobite ; by Prof. Jacob Green, 



M. D-, 40 



IV. On the Natural History of Volcanos and Earthquakes ; 



by Prof. Gustav Bischof, M. D., . . . . 41 

 V. Reply of Dr. Daubeny to Prof. Bischof 's Objections 



to the Chemical Theories of Volcanos, ... 78 

 VI. Mountains in New York ; by E. F. Johnson, . . 84 

 VII. Account of a Tornado ; by Willis Gaylord, . . 90 



VIII. On Meteoric Stones — From the Annual Account of the 



Progress of Physics and Chemistry ; by Berzelius, 93 

 IX. Terrestrial Magnetism ; by J. Hamilton, . . . 100 

 X. Explosion of Hydrogen and Oxygen, with Remarks on 



Hemming's Safety Tube ; by Prof. J. W. Webster, 104 

 XT. On the Greek Conjugations ; by Prof. J. W. Gibbs, • 112 

 XII. Notice of Prof, Ehrenberg's Discoveries in relation to 

 Fossil Animalcules ; also Notices of Deceased Mem- 

 bers of the Geological Society of London, being ex- 

 tracts from the Address of Rev. William Whewell, 



B. D. F. R. S., 116 



XIII. Account of a Meteor seen in Connecticut, December 

 14, 1837 ; with some considerations on the Meteo- 

 rite which exploded near Weston, Dec. 14, 1807; 



By Edward C. Herrick, 130 



XIV. Some Notice of British Naturalists ; by Rev. Charles 



Fox, 136 



MISCELLANIES. 



1. Pictorial delineations by light ; solar, lunar, stellar, and arti- 



ficial, called Photogenic and the art Photography, . . 169 



2. Correction of an Error — Cinnabar not found in Michigan, 185 



nu»*j 



