350 
DR E. H. GRIFFITHS AND MR. EZER GRIFFITHS ON THE 
Table XVII. 
Comparison of the Experimental Results with the Formula of Einstein, Nernst 
and Lindemann and Debye. 
Column I.—T, absolute temperature. 
Column II.—C p , from the smoothed curves previously referred to. 
Column III.— Cp, calculated value from Einstein’s formula (E.). 
Column IV.— Cp, calculated value from Nernst and Lindemann’s formula (N. & L.) 
Column V.— Cp, calculated value from Debye’s formula (D.). 
The values of (3v are given at the top of the columns. 
T. 
C p (obs.). 
Op (E). 
Cp (N. and L.). 
Cp (D.). 
Aluminium. 
pv = 292. 
pv = 385. 
Pv m = 385. 
o 
35 
0-33 
0-12 
0-37 
0-35 
80 
2-27 
2-18 
2-46 
2-35 
140 
4-26 
4-26 
4-26 
4-28 
200 
5-14 
5-12 
5-10 
5-10 
250 
5-53 
5-49 
5-47 
5-47 
300 
5-81 
5-75 
5-74 
5-74 
380 
6 • 13 
6-02 
6-01 
6-01 
Copper. 
f3v = 222. 
pv = 285. 
pv m = 286. 
0 
33-4 
0-54 
0-36 
0-82 
0-71 
88 
3-38 
3-60 
3-74 
3-70 
120 
4-58 
4-52 
4-58 
4-57 
200 
5-44 
5-46 
5-47 
5-47 
280 
5-80 
5-78 
5-80 
5-80 
360 
6-02 
5-96 
6-01 
6-01 
1 
Zinc. 
pv = 160. 
pv = 210. 
I 
o 
T— H 
<n 
ii 
o 
30 
0-95 
0-84 
1-30 
M3 
80 
4-09 
4-33 
4-33 
4-33 
130 
5-31 
5-32 
5-31 
5-31 
200 
5-78 
5-76 
5-77 
5-77 
280 
6-02 
6-00 
6-01 
6-00 
360 
6-21 
6-19 
6 19 
6-19 
i 
