Miscellaneous Papers. 197 



In the second part of vol. v., published in 1802, we 

 seem to enter an entirely new region. Dalton comes in 

 with freshness and force, and we pass as if from the mild- 

 ness of untaught sentiment into the vigour of external 

 nature. 



We have Dalton on ' Evaporation and Springs ; ' ' On 

 the Power of Fluids to conduct Heat ; ' ' Experiments and 

 Observations on the Heat and Cold produced by the Me- 

 chanical Condensation and Rarefaction of Air ; ' ' Experi- 

 mental Essays on the Constitution of Mixed Gases ; ' and 

 ' Meteorological Observations made at Manchester ; ' and 

 Mr. Banks adds, ' On the Velocity of Air issuing out of 

 a vessel in Different Circumstances/ a subject also interest- 

 ing to earlier as well as later members of this Society. 



