of the 'Temperature of boiling Water . 373 
N° 
Height of 
the baro- 
meter. 
Boiling 
point by 
obferva- 
tion. 
Boiling pt. 
by Mr. 
de luc’s 
rules. 
Error. 
Boiling point 
by interpola- 
tion from N° 
1, 2, 6, 7, 
14, and 15. 
Error. 
Inch. 
0 
0 
0 
0 
0 
1 
26,498 
207,07 
208,54 
+0,47 
207,18 
+ 0,11 
2 
27,241 
208,64 
208,84 
+0,20 
,208,52 
— 0,12 
3 
2 7 , 95 + 
209,87 
210,03 
+0,16 
209,80 
-0, 7 
4 
28,377 
210,50 
210,81 
+0,31 
210,56 
-f 0, 6 
5 
28,699 
211,27 
2 H ,34 
+0, 7 
21 1,1 1 
— 0,16 
6 
28,898 
211,50 
21 1,67 
+0,17 
211,47 
-0, 3 
7 
28,999 
21 1,6o 
211,85 
+0,25 
211,64 
+ 0, 4 
8 
29)447 
212,55 
212,74 
+0,19 
212,42 
-0,13 
9 
29,805 
212,95 
2 i 3 5 iS 
+0,20 
213,03 
+0, 8 ; 
10 
30,008 
213,22 
2 i 3»47 
+0,25 
213,49 
+ 0,27 
11 
30,207 
213,58 
213779 
+ 0^21 
213,71 
+ 0,13 
12 
30,489 
214,15 
214,23 
+0, 8 
2 i 4, x 9 
+ °, 4 
x 3 
3°>763 
214,37 
214,66 
4-0,29 
214,65 
+ 0,28 
H 
3°, 8 47 
214,83 
214,79 
-0, 4 
214,79 
0, 4 
15 
30,957 
214,96 
9 214,96 
,0 
214,96 
,o 
I fhall make no deductions from this comparifon, but 
leave them to the leifure of the reader. It will, how- 
ever, probably be inquired, how the thermometer came 
to ftand at. a 1 3 0 in boiling water, when the barometer 
was about 30 inches, 2,1a 0 being the degree by which 
that heat is expreffed on Fahrenheit’s fcale? The an- 
fwer is eafy : it was an error in the making of the inftru- 
ment, and, I believe, a pretty general one. There was 
Vol. EXIX. D d d alfo 
