PEOFESSOE K.OPP ON THE SPECIFIC HEAT OF SOLID BODIES. 
151 
Molybdate of Lead , Pb M 0 4 . Comminuted crystals of Wiilfenite (Gelbbleierz) from 
Bleiberg in Carinthia. 
Experiments with Naphtha A. Glass 3 Temperature of the Air 17°-6-17°-4. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• 
y- 
X. 
sp. H. 
50-2 
19-3 
18-95 
16-45 
grms. 
26-98 
grms. 
8-69 
grms. 
2-32 
0-431 
grin. 
0-453 
0-0840 
50-0 
19-2 
18-92 
16-43 
26-97 
55 
55 
?? 
„ 
0-0837 
48-6 
19-1 
18-84 
16-47 
26-935 
55 
5T 
55‘ 
>» 
0-0818 
49-3 
19-3 
19-01 
16-62 
26-98 
„ 
2-295* „ 
55 
0-0814 
Mean . . . 0-0827 
68. Chromate of Lead, Pb €r G 4 . For the investigation pieces of artificially prepared 
chromate of lead were used, which after fusion had solidified to an aurora-red mass of a 
fibrous crystalline structure, and with crystal needles on the surface. 
Experiments with Naphtha A. Glass 3. Temperature of the Air 17°T-17°’9. 
T. 
T'. 
t'. 
t. 
M. 
m. 
A U’ 
X. 
sp. H. 
o 
o 
0 
0 
grms. 
grms. 
grm. 
grm. 
50-0 
19-0 
18-74 
16-22 
26-975 
10-60 
1-93 0-431 
0-453 
0-0857 
50-1 
19-2 
18-92 
16-34 
26-985 
55 
55 55 
55 
0-0931 
49-6 
19-2 
18-93 
16-42 
26-975 
55 
55 55 
55 
0-0889 
49-9 
19-3 
19-02 
16-44 
26-99 
55 
1-915* „ 
55 
0-0940 
Mean . 
0-0900 
Chromate 
of Potass, K 2 Cr G 4 . 
Crystals 
of the neutral salt dried 
at 105° 
Experiments with Naphtha A. Glass 
1. Temperature of the 
Air 16 c 
•l-16°-8. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• y- 
X. 
sp. H. 
o 
o 
0 
o 
grms. 
grms. 
grm. 
grm. 
49-1 
18-0 
17-69 
15-13 
26-985 
4-995 
1-535 0-431 
0-651 
0-182 
45-7 
17-8 
17-49 
15-14 
26-975 
55 
55 55 
„ 
0-192 
47-3 
17-9 
17-62 
15T3 
26-995 
55 
55 55 
55 
0-195 
48-2 
18-2 
17-93 
15-43 
26-955 
» 
1-525* „ 
55 
0-188 
Mean . . . 0-189 
Acid Chromate of Potass, K 2 Cr 2 G 7 Crystals of the so-called bichromate. 
Experiments with Naphtha A. Glass 1. Temperature of the Air 19°T-19°'5. 
T. 
T'. 
t'. 
t. 
M. 
m. 
/• 
y- 
X . 
sp. H. 
o 
o 
o 
o 
grms. 
grms. 
grm. 
grm. 
53-3 
21-1 
20-83 
18-33 
26-97 
4-275 
1-58 
0-431 
0-651 
0-178 
51-5 
21-1 
20-82 
18-42 
26-95 
5 5 
„ 
55 
55 
0-186 
51-6 
21-1 
20-76 
18-33 
26-96 
55 
55 
55 
„ 
0-191 
52-6 
21-2 
20-93 
18-45 
26-975 
55 
1-555* 
„ 
55 
0T89 
Mean . . . 0T86 
* After drying tlie stopper. 
T 
MDCCCLXV. 
