OF THE NATIONAL PHYSICAL LABORATORY. 



371 



From these observations plotted, the following were deduced as the thermojunction 

 readings simultaneous with the gas thermometer readings : 



From table of E.M.F. of junctions the value of the E.M.F. for 1000 C. 

 and the difference for 10'' = 11 51 microvolts. 



Whence the temperature corresponding to 9573'9 = 1004*3 



T (thermojunction) = 1004'3. 



= 9524-0, 



PLATINUM Thermometer Headings. Expt. 13. 



Observer, W. H. 



Difference for 

 009 in 8. 



1125-44 



868-79 



868-70 



1005-18 



- -82 



Summary . 



T(S= 1-491) = 1004-37. 



o 



T gas (found) = 1005'G 



Furnace correction = + O'O 



T gas corrected = IOOS'0 



T thermojunction = 1004'4 



T platinum thermometer =. 1004 '37 

 3 B 2 



