O'S' THE DENSITY OE STEAM AT DIEEEEENT TEMPEEATURES. 
199 
Experiment 7. — Globe B. Thermometer A. March 15, 1859. 
Weight of water introduced =31‘730 grains. 
Time. 
Thermometer. 
Cathetometer. 
Diiference 
of level of 
columns. 
1 
1 
Eemarks. 
In steam. 
In oil. 
Inner column. 
Outer column. 
h 
m 
inches. 
inches. 
inches. 
2 
20 
279 
320 
31-64 
20-16 
11-48 
Lamps lighted at 12 o’clock. i 
2 
30 
279 
31-63 
20-14 
11-49 
2 
33 
279 
31-74 
20-16 
11-58 
i 
2 
35 
279 
31-70 
20-14 
11-56 
i 
2 
37 
279 
31-58 
20-14 
11-44 
2 
50 
275 
300 
28-18 
21-40 
6-78 
2 
54 
275 
28-38 
21-33 
7-05 
2 
57 
275 
28-20 
21-43 
6-77 
3 
0 
275 
28-30 
21-38 
6-92 
3 
7 
275 
300 
28-26 
21-38 
6-88 
3 
15 
275 
28-36 
21-41 
6-95 
1 
3 
25 
273 
26-38 
22-02 
4-36 
3 
30 
273 
26-30 
22-02 
4-28 
3 
35 
273 
26-45 
22-00 
4-45 
3 
38 
273 
26-36 
22-01 
4-35 
3 
40 
273 
26-40 
22-01 
4-39 
i 
3 
41 
273 
26-38 
22-02 
4-36 
1 
3 
42 
273 
26-41 
22-02 
4-39 
1 
3 
50 
271 
301 
24-89 
22-47 
2-42 
3 
56 
271 
25-04 
22-48 
2-56 
4 
0 
271 
24-99 
22-45 
2-54 
1 
4 
3 
271 
25-09 
22-44 
2-65 
4 
4 
271 
25-06 
22-46 
2-60 
4 
6 
271 
24-95 
22-50 
2-45 
4 
10 
271 
25-08 
22-46 
2-62 
4 
55 
267 
310 
23-93 
22-79 
1-14 
' 4 
56 
267 
23-95 
22-79 
1-16 
4 
57 
267 
23-98 
22-77 
1-21 
4 
58 
267 
23-95 
22-79 
1-16 
5 
0 
265 
23-81 
22-80 
1-01 
5 
3 
265 
23-89 
22-78 
1-11 
5 
5 
265 
23-95 
22-78 
l-MP 
5 
7 
265 
23-89 
22-75 
1-14 
Summary of Column Determinations. 
Thermo- 
meter, 
Fahr. 
Catheto- 
meter, 
inner 
column. 
Difference 
of level of 
columns. 
Number 
of deter- 
minations 
averaged. 
Tempera- 
ture, 
coi-rected 
for 
pressure. 
Capacity 
of globe, 
in grains 
of water 
at 39°T. 
Difference 
of level of 
columns, 
corrected 
to32^ 
Eise 
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. 
26.5 
inches. 
23-89 
inches. 
1-11 
4 
264-49 
19168-5 
inches. 
1-09 
inches. 
77-94 
77-94 
605-65 
267 
2.3-95 
1-19 
4 
266-46 
19165-5 
1-16 
0-07 
80-54 
80-47 
605-55 
271 
25-01 
2-55 
7 
270-40 
19111-2 
2-50 
1-41 
85-92 
84-51 
603-90 
273 
26-38 
4-37 
7 
272-36 
19041-1 
4-26 
. 3-17 
88-71 
85-54 
601-71 
275 
28-26 
6-93 
7 
274-34 
18934-5 
6-76 
5-67 
91-62 
85-95 
598-34 
279 
31-65 
11-51 
5 
278-27 
18731-2 
11-23 
10-14 
97-605 
87-465 
591-95 
