598 



TABLE 631.— RELATIVE DENSITY OF MOIST AIR FOR DIFFERENT 

 PRESSURES AND HUMIDITIES (concluded) 



Part 2. — Values of the logarithms of -=^- for values of h between 80 and 800 



760 



(concluded) 



Values of log =— 



8 



9 



750 1.99425 1.99483 1.99540 1.99598 1.99656 1.99713 1.99771 1.99828 1.99886 1.99942 



760 .00000 .00057 .00114 .00171 .00228 .00285 .00342 .00398 .00455 .00511 



770 .00568 .00624 .00680 .00737 .00793 .00849 .00905 .00961 .01017 .01072 



780 .01128 .01184 .01239 .01295 .01350 .01406 .01461 .01516 .01571 .01626 



790 .01681 .01736 .01791 .01846 .01901 .01955 .02010 .02064 .02119 .02173 



TABLE 632.— DENSITY OF MOIST AIR, VALUES OF 0.378p 



h 



This table gives the humidity term 0.378/), which occurs in the equation 5 = 5 -=7^ — 

 d r\ 770/. /OU 



5o W7K — f° r the calculation of the density of air containing aqueous vapor at pres- 



760 

 sure p; S is the density of dry air at normal temperature and barometric pressure, B the 

 observed barometric pressure, and h = B — 0.378/>, the pressure corrected for humidity. 



For values of =77: , see Table 631. Temperatures are in degrees centigrade, and pressures 



760 

 in mmHg. 



SMITHSONIAN PHYSICAL TABLES 



