similar Parallels of Latitude, is warmer than that of 

 the Atlantic Coast? By Lewis C. Beck, M. D. 34 

 Art. VIII. Observations on the Geological Features of 

 the South Side of the Ontario Valley, in a Letter to 

 T. Romeyn Beck, M. D. By James Geddes, Civil 

 Engineer, - - 55 



Art. IX. Statistical Notices of some of the Lunatic Asy- 

 lums in the United States. By T. Romeyn Beck, 60 



Art. X. Observations on the great Greywacke Region 

 of the State of New-York. By James O. Morse, of 

 Cherry-Valley, Corresponding Member, - - 84 



List of Officers for 1829, 86 



Art. XI. Topographical Sketch of the State of New- 

 York, designed chiefly to show the general Elevations 

 and Depressions of its Surface. By Joseph Henry, 87 



Art. XII. An Account of a IsUu who lived on Water 

 for fifty-three Days. By James M'Naughton, M. D. 

 Professor of Anatomy and Physiology in the Univer- 

 sity of the State of New-York, - - - - 113 



Art. XIII. Monograph of the Cones of North America, 

 including three new species. By Jacob Green, M. 

 D., Professor of Chemistry in Jefferson Medical Col- 

 lege, Philadelphia, Corresponding Member, - - 121 



Art. XIV. Observations on the Coal Formations in the 

 State of New- York ; in connexion with the great 

 Coal Beds of Pennsylvania. By Amos Eaton, Cor- 

 responding Member, 12 6 



Art. XV. The Dolia of the United States. By J. 

 Green, M. D., Professor of Chemistry in Jefferson 

 Medical College, Pennsylvania, Corres. Member, 131 



