128 PROFESSOR KOPP ON THE SPECIFIC HEAT OF SOLID BODIES. 
Binoxide of Tin, Sn G 2 . Fragments of crystals of tinstone from Saxony. 
Experiments with Naphtha A. Glass 2. Temperature of the Air 14 0, 5. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• 
y- 
X. 
sp. H. 
O 
O 
0 
0 
grins. 
grms. 
grm. 
grm. 
50-4 
17-0 
16-66 
13-52 
26-99 
14-495 
1-71 
0-431 
0-487 
0-0906 
46-6 
16-4 
16T4 
13-33 
26-925 
55 
55 
55 
55 
0-0884 
45-1 
16-4 
16-05 
13-35 
26-96 
55 
55 
59 
55 
0-0905 
45-7 
16-3 
16-04 
13-32 
26-98 
55 
1-695 
* 
55 
„ 
0-0882 
Mean . . . 0-0894 
48. Silicic Acid, Si 0 2 . Pieces of transparent quartz (rock-crystal) from the Grimsel. 
I. — Experiments with Naphtha A. Glass 1. Temperature of the Air 17°-7-17°'4. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• y • 
X. 
sp. H. 
grms. 
grms. 
grm. 
grm. 
53-8 
20-1 
19-83 
17-03 
26-99 
4-88£ 
► 1-58 0-431 
0-651 
0T86 
52-5 
19-8 
19-53 
16-77 
26-96 
55 
5 5 55 
55 
0-193 
51-8 
19-7 
19-43 
16-77 
26-98 
55 
55 55 
55 
0-185 
51-7 
19-7 
19-42 
16-76 
26-945 
55 
55 55 
55 
0-186 
52-7 
19-7 
19-35 
16-64 
26-96 
55 
1-56 * „ 
55 
0-182 
Mean 
0-186 
II. — Experiments with Naphtha A. Glass 3. 
Temperature of the Air 19°T-19°-4. 
T. 
T'. 
t'. 
t. 
H. 
m. 
/• y- 
X. 
sp. H. 
O 
o 
o 
o 
grms. 
grms. 
grm. 
grm. 
51-5 
21-0 
20-74 
18-36 
26-985 
5-135 
1-635 0-431 
0-453 
0-185 
51-0 
21-1 
20-79 
18-45 
26-96 
55 
55 55 
55 
0-185 
52-6 
21-2 
20-92 
18-45 
26-955 
55 
55 55 
55 
0-187 
52-6 
2i*2 
20-89 
18-42 
26-97 
55 
1-62* „ 
55 
0-189 
Mean 
0-187 
III. — Experiments with Naphtha B. Glass 3. 
Temperature of the Air 17°-8-17°-9. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• y- 
X. 
sp. H. 
0 
0 
o 
o 
grms. 
grms. 
grm. 
grm. 
50-0 
20-0 
19-69 
17-27 
26-98 
5-645 
1-70 0-419 
0-453 
0T75 
50-5 
19-9 
19-64 
17-14 
26-97 
,, 
55 55 
55 
0-184 
50-0 
20-1 
19-82 
17-40 
26-99 
„ 
55 55 
5J 
0T81 
50-0 
20-0 
19-66 
17-22 
26-975 
1-685* „ 
5J 
0-178 
Mean 
0-180 
* After drying the stopper. 
