930 
TABLE 4. 
Na — slowly cooled (Annealed) 
Temperature Data Spec. Heat | Mean 
0° Aug. 28 0.2835 
0.2836 
0.2820 0.2829 
0.2826 
28° .82 | Aug. 19 0.2911 
0.2910 
0.2929 0.2910 
0.2893 
49°. 38 Aug. 8 0.2954 
0.2952 
0.2951 | 
0.2055 0.2953 
0.2951 
0.2955 
49°.21 | Aug. 16 0.2946 
| 0.2949 0.2953 
| | 0.2064 
499.07 | Aug. 17 0.2963 | 
Aug. 20 | 0.2945 0.2950 
0.2942 
67°.79 Aug. 21 0.3014 
0.3037 
0.3018 0.3019 
0.3010 
0.3018 
79°.15 Aug. 22 0.3083 
0.3085 
0.3086 0.3083 
0.3079 
85° .65 Aug. 15 | 0.3168 
0.3181 | 
0.3165 0.3171 
0.3178 
0.3159 | 
90°.03 | Aug. 23 0.3209 
0.3208 
0.3208 | €-3209 
0.3210 
PS) Aug. 24 0.3260 
| 0.3254 0.3258 
0.3260 
| 
| 
If the cooling had taken place very slowly, the values found at 
each temperature were definite and reproducible. This proves that 
the values given in table I refer to the state of equilibrium at the 
