4:4.4: A. L. Day and J. K. Clement — Gas Thermometer. 



Table I. 



Initial pressure, 302 -3 mm . 

 a=0'003665. 



Average temperature difference between middle and either end 

 of bulb, 10°. 



Equation used for " calculated " temperatures, 



T = 50*19 + 0-11176E — 1-289 X 10- 6 E 2 . 



1906 



(mm) 



Thermo 

 couple " 1 

 Microvol 



J,) Temperature 



Temperature 



T (obs.)— 



, Observed 



Calculated 



T (cal.) 



Apl.30 



30-209 



3231 



* • 396-8° 



397-8° 



-1-0° 







4738 



550-4 



550-8 



- -4 







6232 



696-5 



696-6 



— -1 







7302- 



797-6 



797-5 



+ 'I 







8428: 



900-2 



900-5 



— -3 







9547 



998-4 



9996 



— 1-2 







11004- 



1123-5 



1123-9 



— -4 



May 1 



30-220 











May 2 





2961' 



* 368-6 



369-8 



— 1-2 







4944' 



571-2 



571-2 



- -o 







6448 



717-8 



717-2 



+ '6 







7525 



818-6 



818-2 



+ '4 







8094 



869-7 



870-3 



— -6 







9040 



954-5 



955-1 



— -6 







9750 



1016-4 



1017-3 



- -9 







10583 



f 1089-9 



1188-5 



+ 1-4 



May 3 



30-229 











May 4 





3928 



470*0 



469-3 



+ -7 







5186 



595-2 



595-1 



+ '2 







5944 



669-1 



668-9 



+ '2. 







6725 



743-8 



743-4 



+ '4 







7755 



839-7 



839-3 



4- '4 







9255 



973-1 



974-1 



— 1-0 







10135 



1049-9 



1050-4 



— *5 



May 5 



30-230 











May 7 





3918 



468-0 



468-3 



— -3 







6926 



762-8 



762-4 



+ *4 







8910 



943-4 



943-6 



— -2 







10631 



1092-8 



1092-6 



+ '2 







11264 



1147-0 



1145-4 



+ 1-6 



May 9 



30-252 











were calibrated from time to time by metal melting point 

 determinations. Columns 7 to 10 of Table II contain the 



* Observations below 41 5° were not used in computing the parabola, 

 f Temperature fell 2° during observation. 



