JOURNAL 



OF 



NATURAL PHILOSOPHY, CHEMISTRY 



AND 



THE ARTS. 



{ NOVEMBER, 1806. 



ARTICLE I. 



Experiments and Observations on the Adhesion of the 

 Particles of Wafer to each other. Bi/ Benjamin, 

 Count of Rumford, F. R. S. S^c,, Communicated hy 

 the Author to the National Institution of France, and 

 transmitted to him by the Editor. 



(Concluded from page 159.) 



O prove this fact in another manner, I again varied A stratum of 

 the experiment, by placing a stratum of ether immedi- ^^rcui^v— 

 ately upon the mercury. The particles of this liquid ap- 

 pear to have very little adhesion to each other ; for which 

 reason I imagined that the kind of film that would be 

 formed at its surface, must have very little force. The 

 results of my experiment fully confirmed this conjecture. 



The very smallest spherules of mercury which I let .„ appears to 

 fall through this liquid, seldom failed to mix immediately afford no re- 

 with the mass of mercury on arriving at its surface, where ^cending^v" 

 they entirely disappeared ; and I have never succeeded dies. 

 in causing either a spherule of mercury, or the smallest 

 metallic particle, nor any other body of greater specific 

 gravity than ether, to swim upon its surface. 



Vol. XV.— NoY. 180Q. A a The 



