CONTENTS. 



possessing all its valuable Properties. Bij Thomas GiLt, 



Esq Page glO 



XXXVT. An Account of some Experiments and Observa- 

 tions on the constituent Part^ of certain astringent Vege- 

 tables ; and on titeir Operation in Tanning. By Hum- 

 PHii,Ey Daw, Esq. Professor of Clicmistrtj in the Royal 

 Institution 212 



XXXVII. Of the Herring Fishery. Translated from the 

 French of M. Dvhamel and others 218 



XXXVIII. Improved J\Jbthod of preparing Black Oxide of 

 Mercury. By M. Schulze, of Kiel 225 



XXXIX. On the Stones said to have fallen from, the At- 

 mosphere. By J. Dklalande 228 



XL. Extracts from the Third Vohimc of the Analyses of 

 M. Klaproth 230 



XLI. Examination of the Red coloured JVaier of a Lake near 

 Lubotin, in South Prussia. By Prcfessor Klapkoth 243 



XLII. Explanation of the Inscription on a Brick from the 



Site of antient Babylon. By the Rev. Samuel Hen- 



' LEY, M.A. F.A. S 250 



XLI II. Eleventh Communication from Dr. Thornton 254 



XLI V. A Contribution towards the assaying of Coi7is. By 

 Professor Klaproth 2o6 



XLV. On Cinis ; a Kind of Alkaline Earth formed durivg 

 the Incineration of IVood, not yet noticed by Chemists in 

 their Nomenclature. Addressed to George Pearson, 

 M.D. F.R.S. &c. by Samuel L. Mitchill, M. D. 

 Member of Congress, &c. in a Letter, dated New York, 

 September 20, 1803, and communicated to Mr. Ti.Li.ocn 

 at the particular request ff the Author 267 



XLVI. Account of a Shower of Stones : in a Letter from 

 the Prefect (f the Department of Vaucltuse to the French 

 JSlinister of the Interior, dated November 10, 1803 . . 271 



XLVII. ^In improved Method of heating Boilers ; leing an 

 Account of the JVay in which the Fire is applied to one of 

 the large Boilers in Messrs. Meux's Brewery 275 



XLXTII. Account of the Meteor seen on the Evening of 

 Sunday, November \3th. 1803 ; tvith some Observations 

 on the best Means of ascertaining the Altitude, Bearing^ 

 Magnitud", Distance, and Velocity of such Phenomena. 

 By Mr. T. Firminger 279 



XLIX. Account of New Publi cations 284 



L. . Proceedings of Learned and Economical Societies . . 285 



LL Jntflligence and Miscellaneous Articles 286 



LI I. Chemical Examination of an antient Speculum. By 

 Professor Klaproth, of Berlin 289 



LIII. A?i Account of some Experiments and Observations 



on 



