A 



JOURNAL 



OF 



NATURAL PHILOSOPHY, CHEMISTRY, 



AND a ■ 



1 "', THE ARTS. 



OCTOBER, 1805. 



ARTICLE I. 



Experimental Jnvcjligations concerning Heat, By Benjamin- 

 Count of Rum ford, V. P.R.S. Foreign Ajfociale of the 

 National Inftitute of France, tyc. fyc. Received from the 

 Author, 



To Mr. NICHOLSON. 



Dear Sir, Munich, Augufi 29, 1 8 05. 



AaAVING learned by a letter which I received this day from 

 England, that you have publifhed in your Journal of Natural 

 Philofophy the memoir I fent you on the temperature at which 

 the denfity of water is a maximum, 1 take the liberty to fend 

 you herewith inclofed three memoirs on heat, which are def- 

 tined to appear in the next volume of the publications of the 

 firft claf's of the National Inftitute. — Three other memoirs of 

 mine will appear in that volume, but as they contain little that 

 would be new to you, I do not fend them to you. 



I continue my refearches on heat, and have lately made fe- 

 veral new and very interefting experiments, the remits of 

 which it is my intention to communicate to you, as foon as I 

 fhall have compleated the particular courfe of experiments in 

 which I am now engaged. 



I am, Dear Sir, with much efteem, 



Your moft obedient fervanf, 



RUMFORD. 



Vol. XII.— October, 1805. F Sect. 



