DAY AND SOSMAN: NITROGEN THERMOMETER SCALE 



173 



5. EXPERIMENTAL RESULTS 



In Table I, column 3, P' is the measured pressure of the gas in 

 mm. of mercury at 0°; the application of the correction for the 

 "unheated space" gives the pressure P of column 4; t (column 5) 

 is the gas thermometer temperature in the nitrate bath, and e 

 (column 6) the corresponding electromotive force of the thermo- 

 element in microvolts; e (column 7) is the electromotive force of 

 the same elements in benzophenone, zinc and antimony respec- 

 tively, and the final column contains the corresponding gas ther- 

 mometer temperatures. 



Table II contains the measurements made in the sulfur vapor 

 bath, p' and p represent the gas thermometer pressures corrected 

 as before, t the resulting temperature, followed by the barometer 

 reading reduced to sea level at lat. 45°, and the boiling tempera- 

 ture reduced to 760 mm. pressure. 



TABLE II 

 Direct Measurement of Boiling Point op Sulfur 



In Table III are brought together all the gas thermometer 

 determinations of the boiling point of sulfur since 1890 with the 

 necessary information for an intelligent comparison of the deter- 

 minations. Column 5 contains the initial pressure of the gas used 

 and column 6 the original value published by the author with a 

 reference to the place of publication. Two of these determina- 

 tions were subsequently corrected by the authors themselves. 

 These corrections (with the references) are given in column 7. 



