( 708 ) 



The total value of the correction of the stem appears to be very 

 small, so that we might apply the law of Gay- LussAcdown to— 217° 

 without introducing appreciable errors. 



§ 10. Values of pv a- 



The values of pvA obtained in this way for the different determi- 

 nations have been represented for the isotherm of — 212 .82 in the 

 following table. The values in the last columm refer to the reduc- 

 tion to the standard-temperature t s (cf. the conclusion of § 8). 



The values of this table have been obtained, as appears from 

 table IX, by calculation with the mean values of the separate read- 

 ings. The deviations in these separate readings which may be due 

 both to oscillations of the pressure and the temperature and to errors 



1 

 in the readings themselves, amount nowhere to more than — — — . 

 2000 



The result found for about the same point at the beginning and 



at the end of one determination of an isotherm are in very good 



accordance, as moreover is to be seen by comparing observation 



