446 A. L. Day and J. K. Clement — Gas Thermometer. 



Table II. 



Thermo-couple "W." Initial pressure, 287* 5 mm . a=0'003665. Maximum 

 temperature difference between middle and either end of bulb, 0'5°. Equa- 

 tion used for ' ' calculated " temperatures, 



T = 51-72 + 0-112499E - 1-35512 x 10~ 6 E 2 



No. 



Date 



Initial 

 Pressure 



Thermo- 

 couple 



M.V. 



Observed 

 Temper- 

 ature f 



T (obs) 

 - T (cal) 



Po. 



28-755 













3367- 



414-49° 



— 



0-64° 





3371- 



414-96 



— 



•59 





3532-* 



431-76 



— 



■40 





3536* 



432-25 



— 



•32 



28-739 













3416- 



419-96 



— 



•25 





3417- 



420-00 



— 



•31 





3571 •* 



436 23 



+ 



•06 





3574-* 



436-40 



— 



•08 





3789-* 



458-55 



+ 



•03 





3793-* 



458-94 



+ 



•01 



28-734 













3309 •* 



408-51 



— 



•63 





3310-* 



408-71 



— 



•53 





3430- 



421-50 



— 



•15 





3429- 



421-50 



— 



•04 





3540 •* 



432-83 



— 



•15 





3540 •* 



432-89 



— 



•09 



28-735 











28-735 













10430-5 



1078-02 



+ 



•31 





10419- 



1077-05 



+ 



•31 



28-739 













9671- 



1013-17 



+ 



•22 





9664- 



1012-43 



+ 



•08 





10446- 



1079-96 



+ 



•95 





10426- 



1078-26 



j- 



•93 





10434- 



1079-02 



+ 



1-02 





9895-5 



1032-75 



+ 



•49 





9895- 



1032-70 



+ 



•48 



28-755 











28-751 













3383- 



416-14 



— 



•70 





3384- 



416-26 



_ 



•64 





4393- 



520-07 



+ 



•29 





4388- 



519-71 



+ 



•44 





4095- 



489-79 



+ 



•11 





4097- 



489-89 



+ 



•01 



E.M.F. Thermo-couple " W 



Zinc Silver 



Gold Copper 



10 



11 

 12 

 13 

 14 

 15 

 16 



17 

 18 



19 

 20 

 21 

 22 

 23 

 24 

 25 



26 



27 

 28 

 29 



30 

 31 



1907 

 Feb. 4 

 Mch. 6 



7 



7 



7 



7 



7 



7 



9 



12 



12 



12 



12 



12 



12 



13 



14 



14 

 15 

 15 

 15 

 16 



20 

 20 



20 

 20 



20 

 20 

 20 



21/22 



It 



23 



Apr. 



2/3 



< i 



22 



a 



23 



is 



23 



n 



23 



<t 



23 



« 



24 



i ( 



24 



3403 



F. 3405 

 M. 3404 



F. 3405 

 M. 3405 



F. 9046 

 F. 9046 



10214 

 10214 



10461. 

 10461. 



10463. 

 10462. 



10457. 

 10456. 



10454. 

 10454. 



* In computing the constants of Equation (1) the observations marked * in 

 Table II were omitted in order to equalize the intervals between points. 



f The column of " calculated " values has been omitted'from Table II for 

 the convenience of the printer. The column of observed temperatures and 

 the column of differences together contain all the information required to 

 reproduce the calculated values obtained from the equation above. 



