CONTENT*. 



No. l'ag;. 



LIX. Extract of a letter from a member of the Society, relative 

 to the great cold in Ha Howell, Massachusets, in 1807. 401 



LX. Statement of deaths and diseases in^ the City and Liberties of 

 Philadelphia for 1807, 1808. — Communicated by the Board 

 of Health. 403 



LXI. An account of Experiments made on Palladium, found com- 

 bined with pure gold; by Joseph Cloud, an officer of the Mint 

 of the U. States. 407 



LX1I. Observations on the Geology of the U. States, explanatory 

 of a Geological Map ; by TV. Maclure. 411 



LXIII. Astronomical Observations made at the, Havanna, 1809 ; 

 by J. J. de Ferrer. 428 



"CJ° Notice of a new machine for steering vessels, 428 



DONATIONS, 



Received since printing the preceding lis^ 



Humboldt (Le Baron de,) His ouvrage sur le nivellement barome 



trique de la Cordillera des Andes, Paris, 4to. 

 Dublin Society, the following Statistical Surveys, 8vo. 

 Of the county of Armagh by Sir Charles Coote, Bart. 1804. 



ditto Kildare, by Thomas J. Rawson Esq. 1807. 



ditto Wexford, by Robert Frazer Esq. 1807. 



- — Observations on sowing spring wheat, publ. by their order, 1807. 



Catalogue of their Library,- classed under proper heads, 1807. 



Sketch of Lectures on meadow and pasture grasses, delivered 



in the Botanical garden of the Dublin Society ; by Waltet 



Wade Esq. Prof, of Botany, 1808. 



