193 



XXV. FORCES OF VAPOR AND RELATIVE HUMIDITY, 



CORRESPONDING TO THE DEGREES OF SAUSSURe's HAIR-HYGROMETER, AT THE 

 TEMPERATURE OF 10° CENTIGRADE. 



From the Experiments of Gay-Lussac. 



The force of vapor is expressed in hundredths, the tension at full saturation being represented by 100. 



157 



