Experiment 3. — Globe C. Thermometer A. December 8, 1858. 
Weight of water introduced =21T75. 
Time. 
Thermometer. 
Cathetometer. 
Difference 
of level of 
Remarks. 
In steam. 
In oil. 
Inner column. 
Outer column. 
columns. 
h m 
inches. 
inches. 
inches. 
12 0 
10*03 
Lamps lighted. 
1 5 
212 
30*33 
20*30 
Steam blowing off. 
1 40 
211*6 
226 
24*73 
22*72 
2*03 
Steam-cock shut. 
3 50 
252 
256 
29*52 
21*10 
8*42 
The differences in the cathetometer 
3 35 
252 
256 
29*50 
21*16 
8*34 
readings arise from the oscillation of 
4 0 
252 
255 1 
29*65 
21*14 
8*51 
the columns, which had to be read 
consecutively and not contempora- 
neously ; partly perhaps from the 
4 7 
253 
256 ! 
30*13 
20*93 
9*20 
obscuring of the real level in the 
4 18 
253 
265 
30*16 
21*00 
9*16 
outer tube by steam bubbles. These 
4 22 
253 
265 
30*15 
21*00 
9-15 
differences, however, are not great. 
4 37 
251 
262 
28*94 
21-36 
7*58 
4 42 
251 
262 
28*92 
21*42 
7*50 
4 50 
250 
260 
28*30 
21*68 
6*82 
5 0 
250 
263 
28*53 
21*68 
6*85 
5 10 
249 
262 
27*98 
21*73 
6*25 
5 30 
248 
255 
27*57 
21*85 
5*72 
5 50 
247 
268 
27*09 
21*99 
5*10 
6 10 * 
246 
273 
26*68 
22*14 
4*54 
6 25 
245 
272 
26*43 
22*25 
4*18 
6 35 
244 
260 
26*03 
22*35 
3*70 
6 40 
244 
257 
26*22 
22*32 
3*90 
6 50 
244 
260 
26*18 
22*32 
3*86 
7 40 
244 
265 
26*20 
22*31 
3*89 
7 55 
242 
268 
25*58 
22*48 
3*10 
8 0 
242 
268 
25*56 
22*50 
3*06 
8 10 
240 
271 
25*16 
22*62 
2*34 
8 20 
242 
271 
23*56 
22*52 
3*04 
8 35 
244 
273 
26*13 
22*32 
3*81 
8 45 
246 
274 
27*01 
22*15 
4*86 
9 10 
250 
274 
28*54 
21*54 
7*00 
9 30 
252 
277 
2.9*79 
21*12 
8*67 
10 0 
246 
276 
26*66 
22*15 
4*31 
10 8 
245 
274 
26*42 
22*22 
4*20 
10 11 
245 
274 
26*45 
22*22 
4*23 
10 20 
! 247 
27*10 
21*99 
3*11 
10 23 
247 
27*13 
22 02 
5*11 
10 30 
244 
276 
26*14 
22*34 
3*80 
10 34 
244 
26*18 
22*33 
3*85 
10 50 
243 
25*94 
22*43 
3*49 
11 0 
243 
25*90 
22*35 
3*35 
11 10 
240 
25-28 
1 
22*56 
2*72 
Summary of Column Determinations. 
Thermo- 
meter, 
Fahr. 
Catheto- 
meter, 
inner 
column. 
Difference 
of level of 
columns. 
N umber 
of deter- 
minations 
averaged. 
Tempe- 
rature, 
corrected 
for 
pressure. 
Capacity 
of globe, 
in grains 
of water 
at.39°l. 
Difference 
of level 
of columns, 
corrected 
to 32°. 
Rise of 
column 
from 
point of 
maximum 
descent. 
Pressure of 
saturated 
steam, in 
inches of 
mercury. 
Pressure of 
steam in 
globe, 
in inches 
of mercury. 
Specific 
volume of 
steam in 
globe, 
corrected 
for ex- 
pansion of 
glass. 
240 
inches. 
23*22 
inches. 
2*63 
2 
239*79 
18856*6 
inches. 
2*58 
inches. 
49*43 
49*43 
892*34 
242 
25*56 
3*07 
3 
241*77 
18840*5 
3*01 
0*43 
52*53 
52*10 
891*74 
243 
25*92 
3*34 
2 
242*76 
18823*5 
.3*28 
0*70 
33*47 
52*77 
890*92 
244 
26*16 
.3*83 
7 
243*75 
18812*1 
3*76 
1*18 
54*43 
53*25 
890*40 
245 
26*43 
4*19 
2 
244*74 
18798*9 
4*11 
1*53 
55*40 
53-87 
889*86 
246 
26*78 
4*64 
3 
245*73 
18780*1 
4*55 
1*97 
56*38 
54*41 
888*98 
247 
27*11 
5*11 
3 
246*72 
18762*4 
5*01 
2*43 
57*36 
54*93 
888*14 
250 
28*52 
6*89 
3 
247*69 
18686*7 
6*73 
4*17 
60*52 
56*35 
884*60 
252 
29*61 
8*48 
4 
251*66 
18628*1 
8*30 
5*72 
62*65 
56*91 
881*83 
253 
30*15 
9*17 
3 
252*65 
18599*1 
8*98 
6*40 • 
63*68 
57*28 
880*46 
2 D 2 
