and we deduce the following very remarkable conclusions:
(1) For the saturated vapors of all different liquids, at the same temperature, the value of must be the same.
(2) For any different gaseous masses, at the same temperature, the value of must be the same.
(3) The values of these expressions for saturated vapors and for gases, at the same temperature, must be the same.
31. No conclusion can be drawn a priori regarding the values of this coefficient μ for different temperatures, which can only be determined, or compared, by experiment. The results of a great variety of experiments, in different branches of physical science (Pneumatics and Acoustics), cited by Carnot and by Clapeyron, indicate that the values of μ for low temperatures exceed the values for higher temperatures; a result amply verified by the continuous series of experiments performed by Regnault on the saturated vapor of water for all temperatures from 0° to 230°, which, as we shall see later, give values for μ gradually diminishing from the inferior limit to the superior limit of
