PHYSICAL AND LITERARY. 89 



between air and water, when every ef- 

 fed correfponds to that theory ? 



Th e true theory of the circulation of 

 moiflure, confidered in its different bran- 

 ches, appears to be what follows: I ft, 

 By an ele61ive attradtion between air and 

 water, there is always found a quantity 

 of air in water, and a quantity of 

 of water in air ; 2d, When water is fa- 

 turated with air, it attra6ts no more ; 

 and when air is faturated with water, ic 

 attrads no more j 3d, Heat is found to 

 augment the power of elecStive attradion j 

 for, after air is faturated with water, or 

 lyater with air, they will attrad more 

 by increafing their heat ; 4th, The air 

 with its moiflure being rarified by heat, a- 

 fcends to a higher region, leaving place 

 below for purer air not yet faturated, 

 which accordingly attrads more moi- 

 fture; and water by that means is diffii- 

 fed through the air; 5th, The grolTer 

 particles of water fwiming in the air, be- 

 ing accumulated by wind, efpecially con- 

 trary winds, become vifible clouds, and 

 fall down in rain by the force of gravity 

 overcoming the eledive attradion; 6th, 



Vol. III. M Cold 



