114 
PROFESSOR KOPP ON THE SPECIFIC HEAT OF SOLID BODIES. 
Fused Silicium *. 
Experiments with Naphtha A. Glass 1. Temperature of the Air 18°*9-18 0, 7. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• y- 
a?. 
sp. H. 
Q 
grms. 
grms. 
grm. 
grm. 
0-142 
49-0 
20-5 
20-24 
18-40 
26-97 
417 
1-555 0-431 
0-651 
50-5 
20*7 
20-43 
18-52 
26-96 
99 
55 
0139 
49-7 
20-6 
20-27 
18-42 
26-965 
99 
55 55 
55 
0136 
50-8 
20-7 
20-43 
18-52 
26.94 
99 
l-145f „ 
55 
0136 
Mean . . . 0138 
38. Tin : reduced from the oxide, cast in small bars. 
I. — Experiments with Naphtha A. Glass 1. Temperature of the Air 17°-8-18 0, 8. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• 
y- 
CO. 
sp. H. 
0 
0 
grms. 
grms. 
grm. 
grm. 
51-4 
19-8 
19-46 
1714 
26-965 
14-835 
1-385 
0-431 
0-651 
0-0493 
51-4 
19-9 
19-62 
17-23 
26-98 
99 
99 
99 
99 
0-0539 
51-3 
20-0 
19-72 
17-34 
26-95 
99 
99 
99 
0-0540 
51-5 
20-3 
20-03 
17-65 
26-995 
99 
1-365 f „ 
99 
0-0553 
Mean 
0-0531 
11. — Experiments with Water. Glass 
1. Temperature of the Air 15' 
3 -5-15°-9. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• 
y- 
X. 
sp. H. 
o 
0 
o 
o 
grms. 
grms. 
grm. 
grm. 
45-1 
17-5 
17-24 
14-13 
26-975 
14-62 
1-595 
1-000 
0-651 
0-0543 
46-4 
17-5 
17-24 
13-94 
26-985 
99 
99 
99 
99 
0-0571 
45-6 
17-6 
17-34 
1414 
26-99 
99 
99 
99 
99 
0-0574 
45-7 
17-6 
17-34 
1414 
26-95 
99 
1-58 f 
99 
99 
0-0573 
Mean 
0-0565 
The average of the means of these two series of observations gives 0-0548 as the 
specific heat of tin between 19° and 48° at 0-0548. 
Platinum : several pieces of fused platinum and of thick platinum wire. 
Experiments with Naphtha A. Glass 1. Temperature of the Air 17 0, 8-18°-2. 
T. 
T’. 
t'. 
t. 
M. 
m. 
/• 
y • 
X . 
sp. H. 
53-5 
20-4 
20-14 
17-23 
grms. 
26-96 
grms. 
23-625 
grm. 
2-225 
0-431 
grm. 
0-651 
0-0322 
52-8 
20-0 
19-65 
16-73 
26-975 
99 
99 
99 
99 
0-0335 
51-5 
20-0 
19-73 
16-95 
26-96 
99 
99 
99 
0-0326 
50-9 
20-0 
19-74 
17-05 
26-96 
„ 
2-205 f 
99 
99 
0-0316 
I have also made a few experiments with a piece of fused iridium which M. Herjsus 
gave me. 
"Wohler had obtained it from Detille ; it formed a cylindrical piece. 
After drying the stopper. 
