CONTENTS OF PART L 



I. A DISSERTATIOM" on the supposed Change in the Temper- 



ature of V/inter. By Noah Webster, jun. Esq. - p. \ 



II. A Dissertation on the Production of Vapor. By Elizur 



Wright, Esq. ---------- - - 69 



III. An Account of the VVhitten Plaster. By the Hon. John C. 



Smith, Esq. ------------ - 81 



IV. Sketch of the Mineralogy of the Town of New-Haven. By 



Benjamin Silliman, Esq. ---83 



"V. Number of Deaths in the Episcopal Church in Neto-Yovk^ 

 in each month for ten years. Communicated by N. Web- 

 ster, jun. Esq. - --.--------9?" 



VI. An Account of the American Cantharis, or Meloe America. 



By Dr. Nathaniel Dvvight. ---99 



VII. A Calculation of the Orbit of the Comet ivhich appeared in 



1807. By Col. Jared Mansfield. 103 



VIII. O/^/zc i-V^-wre o/^Aeiiar^A. By Col. Jared Mansfield. Ill 



IX. Observafiofts on the Duplication of the Cube^ and the Trisec- 



tion of an Angle. By Col. Jared MansfIeld. - - 119 



X. A Statement of the Quantity of Rain which fallsy on different 



days of the Moon. By Jeremiah Day, Pi'ofessor of 

 Mathematics in Yale College. - - ----- 125 



XI. Description of an Air-Pump, invented by Elizur Wright, 



Esq. V2S 



XII. A Brief Account of a Trial at Law, in which the influence 



of a Mill-Dam oii the health of the inhabitants of the neigh- 

 borhood.^ was considered. By the Hon. David Daggett, 



Esq. ir.i 



XIII. On the Deco7npositian of White Lead Paint. By Noah 

 V/ebster, jun. Esq. ---------- 135 



XIV. An Observation of the Auroral Appearance at Durham, 



Aug.\,\7?>o. By the late Rev. Elizur Goodrich, D.D. 137 



XV. An Account of the Meteor, which burst over Weston, z« 



Connecticut, in December, 1807. By Professors Silli- 

 man and Kingsley. 141- 



XVI. A View of the Theories which have been proposed, to ex- 

 plain the Origin cf Meteoric Stones. By Professor Day. 163 



XVII. Origin of Mythology. By Noah Webster, jun. Esq. 175 



