839 



§ 5. Tlie vapour-pressures of nitrogen. 



The deviations of tiie scale used by von Siemens from (lie Leiden 

 scale having been computed in the case of oxygen, Siemens' tempera- 

 tures for nitrogen can be corrected directly. Table IX gives the results. 



Proceedings Royal Acad. Amsterdam. Vol. XVIU. 



54 



