A P P E N D I X NO. XI. 
409 
Table of Comparisons of Spirit Thermometers — Concluded . 
February 18. 
February 23. 
February 20. 
Therm. Read. 
Corr. 
Therm. Read. 
Corr. 
Therm. Read. 
Corr. 
No. 12 
—33*2° 
+2*9° 
No. 12 
—31*7 
4-2*5 
—27-9° 
4-2-2 
4 
—32*6 
+2*3 
4 
—31*2 
4-2*0 
—27*5 
4-1-8 
S 
—30*2 
—0*1 
9 
—30*2 
4-1*0 
—26-9 
4-1*2 
M 
—29*6 
—0*7 
S 
—29*0 • 
—0.2 
—25*2 
—0*5 
G 
—28*8 
—1*5 
M 
—28*6 
—0*6 
—24*7 
—1*0 
A 
—29-0 
—1*3 
C 
*—27*3 
—1*9 
—24*4 
—1*3 
13 
—28 5 
—1*8 
A 
—28*0 
—1*2 
—24*7 
—1*0 
Mean 
—30-3 
13 
—27*5 
—1*7 
—24*3 
—1*4 
Mean 
—29*2 
Mean 
—25*7 
February 19. 
February 15. 
February 19. 
Therm. Read. 
Corr. 
Therm. Road. 
Corr. 
Therm. Read. 
Corr. 
No. 12 
—27-0° 
+2-0° 
—25*0° 
4-2*2° 
—23*8° 
4-1*8° 
4 
—27*0 
+2*0 
—24*3 
4-1*5 
—23*5 
4-1*5 
9 
—26*0 
-H*o 
—24*0 
-H*2 
—23*3 
4-1*3 
S 
—24-5 
—0*5 
—22*1 
—0*7 
—21-2 
—0*8 
M 
—23*9 
—1*1 
—21*5 
—1*3 
—20*8 
—1*2 
C 
—23*6 
—1*4 
—22*0 
—0*8 
—21*0 
—1*0 
A 
_24*2 
—0-8 
—21*6 
—1*2 
—20*8 
—1-2 
13 
—23*5 
—1*5 
—22*0 
—0*8 
—21*3 
—0*7 
Mean 
—26*0 
Mean 
—22*8 
Mean 
—22*0 
February 18. 
February 17. 
Therm. Read. 
Corr. 
Therm. Rend. 
Corr. 
No. 12 
—22*7° 
4-2-0° 
—21*7° 
4-1*5° 
4 
—21*9 
4-1*2 
—21*7 
4-1*5 
9 
_2 ] *2 
4-0*5 
—21*0 
4-0*8 
S 
—20*0 
—0*7 
—19*4 
—0*8 
M 
—19*5 
—1*2 
— 19*1 
—1*1 
C 
—200 
—0*7 
—19*6 
—0*6 
A 
—19*7 
—1*0 
—19*3 
—0*9 
13 
—20*2 
—0*5 
—19*6 
—0*6 
Mean 
—20*7 
Mean 
—20-2 
From these comparisons the corrections of each thermometer for the 
different temperatures between —08° and —20°, at which they were 
observed, was extracted and put together, and generally two or three 
of these corrections which correspond to nearly the same temperatures 
were united to a mean. Between those means the correction for every 
degree of the scale was interpolated and all brought into a continuous 
series. In this way the following table of corrections was obtained:— 
