336 



APPENDIX. 



pheres ; from thence the pressures are now calculated to 350 atmos- 

 pheres by their formula, viz. : 



7153 



where e represents the pressure in atmospheres, and t the temperature 

 above 100 of Centigrade. In this equation each 100 of Centigrade is 

 represented by unity. 



In reducing these temperatures from Centigrade to Fahrenheit's scale, 

 vhere the fractions amount to -5, they have been taken as the next 

 legree above, and all fractions below -5 have been rejected. 





TABLE II. 



TABLE of the quantity of Vapor contained in Atmospheric Air, 

 different Temperatures, when saturated. 



at 



*** The above Table is computed from Dr. Dalton's Experiments on 

 the Elastic Force of Vapor. 



