132 
PROFESSOR KOPP ON THE SPECIFIC HEAT OF SOLID BODIES. 
II. — Experiments with Naphtha A. Glass 2. Temperature of the Air 10°*9. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/- 
y- 
X. 
sp. H. 
46*0 
o 
12*7 
12*41 
9*98 
grms. 
26*95 
grms. 
3*685 
grm. 
1*915 
0*431 
grm. 
0*487 
0*178 
45*6 
12*8 
12*53 
10*15 
26*96 
„ 
99 
99 
„ 
0T75 
46*4 
13*0 
12*74 
10*34 
26*955 
99 
99 
99 
99 
0*169 
45*0 
12*9 
12*64 
10*34 
26*975 
99 
1*90* 
99 
99 
0*170 
The mean of the preceding six determinations gives 0T71 as the specific heat of 
chloride of potassium between 13° and 46°. 
Chloride of Rubidium, Rb Cl. Pure salt fused. 
Experiments with Naphtha A. Glass 2. Temperature of the Air 14°*3-14°*5. 
T. 
T'. 
o 
t'. 
t. 
0 
M. 
grms. 
m. 
grms. 
/• 
grm. 
y- 
X. 
grm. 
sp. H. 
47*9 
16*1 
15*84 
13*64 
26*96 
5*22 
1*835 
0*431 
0*487 
0*112 
46*0 
16*2 
15*92 
13*83 
26*975 
99 
99 
„ 
99 
0*118 
44*3 
16*2 
15*93 
14*00 
26*94 
99 
99 
99 
99 
0*110 
43*8 
16*4 
16*13 
14*26 
26*98 
” 
1*82* 
99 
Mean 
99 
0*109 
0*112 
51. Chloride of Ammonium , NH 4 Cl. I have made five series of experiments with 
different forms of this salt. 
Chloride of Ammonium , crystallized from pure aqueous solution in very small octa- 
hedra. 
I. — Experiments with Naphtha A. Glass 1. Temperature of the Air 12°T-11°*8 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• y- 
X. 
sp. H. 
0 
0 
0 
• o 
grms. 
grm. 
grms. 
grm. 
51*3 
13*7 
13*43 
10*39 
26*96 
1*445 
2*255 0*431 
0*651 
0*387 
44*9 
13*7 
13*44 
10*93 
26*99 
„ 
99 99 
99 
0*380 
44*6 
14*0 
13*70 
11*26 
26*905 
„ 
2*245* „ 
99 
0*365 
Mean . . . 0*377 
I. — Experiments with Naphtha A. Glass 1. Temperature of the Air 12°-l-12°-2. 
T. 
T' 
t\ 
t. 
M. 
m. 
/• 
y- 
X. 
sp. H. 
o 
O 
0 
0 
grms. 
grms. 
grms. 
grm. 
44-1 
13-7 
13-39 
11-11 
26-945 
1-795 
2-485 
0*431 
0-651 
0-166 
47*0 
14-1 
13-84 
11-42 
26-96 
» 
» 
99 
0-145 
II.- 
-Experiments with Naphtha A. 
Glass 1. 
Temperature of the Air 12°-9. 
45-6 
14-5 
14-22 
11-90 
26-945 
2-365 
2-125 
0-431 
0-651 
0-187 
45-7 
14-4 
14-14 
11-90 
26-98 
,, 
}J 
0-154 
46-5 
14-7 
14-43 
12-14 
26-955 
2-115* 
„ 
0-160 
* After drying the stopper. 
