154 
PROFESSOR KOPP ON THE SPECIFIC HEAT OF SOLID BODIES. 
XX.— -Experiments with Naphtha A. Glass 1. Temperature of the Air 16 0 '7-17°-2. 
T. 
T', 
t' r 
t. 
M. 
m. 
/• 
y- 
X. 
sp. H. 
O 
o 
o 
o 
grms. 
grms. 
grin. 
grni. 
49-9 
19-0 
18-65 
16-13 
26-96 
7-77 
1-68 
0-431 
0-651 
0-106 
50*9 
19-0 
18-74 
16-14 
26-94 
55 
55 
55 
0-106 
49-0 
19-0 
1067 
16-22 
26-96 
„ 
1-665* 
55 
„ 
0-107 
Mean . . . 0T06 
The mean of the means of these two sets of experiments gives 0T08 for the specific 
heat of heavy spar between 18° and 44°. 
Sulphate of Strontia, Sr S0 4 . Crystals of celestine from Dornburg, near Jena. 
Experiments with Naphtha A. Glass 3. Temperature of the Air 15 0, 6-16°T. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• 
V‘ 
X . 
sp. H. 
O 
O 
o 
0 
grms. 
grms. 
grm. 
grm. 
50-2 
17-8 
17-47 
14-74 
26-965 
7-63 
1-90 
0-431 
0-453 
0-137 
50-5 
T7-7 
17-43 
14-64 
26-955 
55 
55 
0-134 
51-4 
17 -8 
17-51 
14-64 
26-995 
>5 
55 
„ 
0-135 
52-7 
17-9 
17-55 
14-61 
26-955 
55 
1-875* 
„ 
„ 
0-133 
Mean . . . 0T35 
72. Sulphate of Lime, CaS0 4 . Small crystalline pieces of anhydrite. 
I. — Experiments with Naphtha A. Glass 1. Temperature of the Air 13 0, 2-13°*7. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• 
y- 
X. 
sp. H. 
46-1 
15-6 
15-33 
12-72 
grms. 
26-98 
grms. 
5-305 
grm. 
1-715 
0-431 
grm. 
0-651 
0-173 
46-5 
15-5 
15-22 
12-53 
26-93 
55 
55 
55 
55 
0-178 
45-7 
15-6 
15-34 
12-74 
26-92 
55 
55 
55 
„ 
0-176 
43-6 
15*7 
15-44 
13-11 
26-94 
v 
1-70* 
55 
55 
0-163 
Mean . 
0-173 
II. — Experiments with 
Water. 
Glass 
3. Temperature of the 
Air 17' 
3 -9-18°-3. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• 
V' 
X. 
sp. H. 
47-5 
19-9 
19-62 
15-62 
grms. 
26-95 
grms. 
5-62 
grms. 
2-415 
1-000 
grm. 
0-453 
0-185 
47T 
19-8 
19-53 
15-61 
26-99 
55 
55 
„ 
0-179 
47-1 
20-1 
19-77 
15-87 
26-975 
55 
55 
55 
0-183 
47-5 
20-2 
19-94 
16-03 
26-98 
55 
2-40* 
0-180 
Mean . . . 0T82 
The average of the means of these determinations gives 0T78 as the specific heat of 
anhydrite between 18° and 46°. 
After drying the stopper. 
