162 
PKOFESSOE KOPP ON THE SPECIFIC HEAT OE SOLID BODIES. 
(not to 40°), and the difference of temperature T — T' accordingly was small, I used all 
possible care. I thus obtained the following results. 
a. Crystals obtained from ethereal solution dried at 100°: milky white. 
Experiments with Water. 
Glass 1. 
Temperature of the Air 16°T- 
-15°-7. 
T. 
T'. 
t'. 
t. 
M. 
m. /. 
y • tf- 
sp. H. 
37 T 
o 
18-1 
17-84 
15-64 
grins. 
26-94 
grms. grin. 
3-58 1-845 
grm. 
1-000 0-651 
0-174 
37-1 
18-2 
17-92 
15-73 
26-99 
55 55 
55 55 
0-176 
37-2 
18-0 
17-72 
15-63 
26-985 
„ 1-835* 
„ „ 
0165 
Temperature of the Air 16°T. 
43-7 
18-2 
17-93 
14-93 
26-995 
3-58 1-835 
1-000 0-651 
0-193 
43-5 
18-2 
17-93 
14-95 
26-97 
55 55 
V 55 
0-193 
Temperature of the Air 16°-2. 
51-9 
18-4 
18-12 
13-86 
26-995 
3-58 1-82 
1-000 0-651 
0-269 
48-6 
18-1 
17-77 
13-84 
26-975 
55 55 
55 55 
0-281 
Clear 
crystals obtained from 
ethereal 
solution, dried by passing a current < 
air over them at the ordinary temperature. 
Experiments with Water. 
Glass 3. 
Temperature of the Air 16°-2- 
-15°*7. 
T. 
T'. 
t'. 
. t. 
M. 
m. /. 
y- 
X. 
sp. H. 
36-9 
18-2 
17-93 
15-62 
grms. 
26-99 
grms. grms. 
4-235 2-155 
1-000 
grm. 
0-453 
0-171 
36-8 
18-2 
17-92 
15-64 
26-99 
55 55 
„ 
„ 
0-184 
37-1 
18-3 
18-01 
15-63 
26-975 
„ 2T45* 
55 
- 
0-193 
Temperature of the Air 16T°'-16 C 
>•2. 
T. 
T'. 
t'. 
t. 
M. 
m. /. 
y- 
X. 
sp. H. 
43-4 
o 
18-1 
17-84 
14-63 
grms. 
26-99 
grms. grms. 
4-235 2-145 
1-000 
grm. 
0-453 
0-195 
43-4 
18-2 
17-90 
14-70 
26-96 
55 55 
55 
55 
0-195 
Temperature of the Air 16°-2. 
52-0 
18-9 
18-63 
14-05 
26-955 
4-235 2T25 
1-000 
0-453 
0-272 
47-3 
18-1 
17-83 
13-73 
26-945 
55 55 
55 
„ 
0-285 
In the last series of experiments, on heating to about 50° a change took place in the 
hitherto clear crystals ; they became dull and resembled porcelain. By special experi- 
ments I found that transparent crystals of sesquichloride of carbon gradually heated in 
water underwent this change at 50°-52°. 
These determinations leave no doubt that, as is the case with other substancesf, for 
* After drying the stopper. 
f I call to mind the experiments of Pebsox, who found (Ann. de Chim. et de Phys. [3] vol. xxvii. p. 263) 
for the specific heat of bees’ wax melting at 61 0, 8, 
Between —21° and +3° 6° and 26° 26° and 42° 42° and 58° 
0-4287 0-504 0-82 1-72 
