PROFESSOR EOPP ON THE SPECIFIC HEAT OF SOLID BODIES. 
149 
Diopside, Mgj Si 0 3 . Fragments of a greenish and white crystal of the charac- 
teristic aspect of the diopside from Schwarzenstein in the Tyrol. 
Experiments with Naphtha A. Glass 1. Temperature of the Air 16°’3-16 0 -5, 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• 
y- 
X. 
sp. H. 
G 
o 
0 
o - 
grms. 
grms. 
grin. 
grin. 
48-1 
18-7 
18-42 
15-65 
26-99 
6-17 
1-55 
0-431 
0-651 
0-186 
49-4 
18-4 
18-13 
15-22 
26-98 
55 
55 
55 
0-185 
51-8 
18-6 
18-25 
15-13 
26-98 
55 
55 
55 
0-185 
50-8 
18-8 
18-54 
15-53 
26-925 
55 
1-53* 
55 
55 
0-186 
Mean . . . 0-186 
Diqptase, €uSi0 3 -j-H 2 O. Eine crystals from the Kirgisensteppe. 
Experiments with Naphtha A. Glass 3. Temperature of the Air,16°-7-T6°-4. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• 
y- 
X . 
sp. H. 
49-8 
18-9 
18-63 
16-04 
grms. 
26-94 
grms. 
5-545 
grm. 
1-80 
0-431 
grm. 
0-453 
0-186 
50-3 
19-1 
18-76 
16-17 
26-95 
55 
55 
55 
5? 
0-182 
50-3 
18-9 
18-64 
16-05 
26-99 
55 
55 
55 
0-180 
48-5 
18-9 
18-5.8 : 
16T3 
26-945 
55 
1-79* 
55 
55 
0-181 
Mean . . . 0-182 
Qrthoclase, Al 2 K 2 Si 6 0 16 . Cleavage pieces of a flesh-coloured reddish orthoclase from 
Aschaffenburg. 
Experiments with Naphtha A. Glass 3. Temperature of the Air 18°‘4-19°T. 
T. 
T'. 
t\ 
t. 
M. 
m. 
/• y- 
X. 
sp. H. 
0 
O 
0 
o 
grms. 
grms. 
grm. 
grm. 
50-6 
20-2 
19-86 
17-42 
26-945 
5-185 
1-78 0-431 
0-453 
0-182 
49-6 
20-3 
20-00 
17-63 
26-95 
55 
55 55 
„ 
0-185 
51-1 
20-5 
20-15 
17-71 
26-94 
55 
55 55 
55 
0-179 
51-2 
20-5 
20-21 
17-73 
26-965 
55 
1*77* „ 
55 
0-186 
Mean . . . 0-183 
Albite, Al 2 Na 2 Si 6 0i 6 . Fragments of white crystals from Pfunders, in Tyrol. 
Experiments with Naphtha A. Glass 3. Temperature of the Air 18 0- 7-19°-8. 
T. 
T'. 
t\ 
t. 
M. 
m. 
/• y- 
X . 
sp. H. 
o 
0 
o 
o 
grms. 
grms. 
grm. 
grm. 
52-4 
20-3 
20-04 
17-44 
26-955 
4-835 
1-84 0-431 
0-453 
0-194 
50-7 
20-8 
20-53 
18-14 
26-975 
55 
55 55 
0-188 
50-1 
20-9 
20-63 
18-30 
26-935 
55 
55 55 
55 
0-187 
52-0 
21-1 
20-82 
18-33 
26-955 
55 
55 55 
55 
0-192 
50-4 
21-3 
21-04 
18-73 
26-97 
„ 
T82* „ 
55 
0-187 
Mean . . . 0-190 
* After drying the stopper. 
