( 16 ) 
VIERDE REEKS. 
BEREKENDE FORMÜLE VOOR HET VOLUMEN : 
yt =v°(l -f 0. 00139 8 i-f 0.000002702 0.00000001226 fi) 
T. 
D waargenomen. 
D berekeud. 
W— 
B. 
| 00 C. 
0.72624 
0.72628 
— 
4 
J 0° » 
0 72631 
0.72628 
+ 
3 
J 0° » 
0.72627 
0.72628 
— 
1 
( 0° » 
0.72628 
0.72628 
0 
14°. 4 » 
0 71141 
0.71153 
— 
12 
f 16°. 8 » 
0 70910 
0.70904 
4- 
6 
1 17°.75» 
0.70802 
0.70805 
— 
3 
1 17°.8j» 
0.70796 
0.70794 
+ 
2 
J 1 7°.9 » 
0 70789 
0.70790 
— 
1 
1 lh°.0 » 
0.70772 
0.70780 
— 
8 
l ] 8°.8 » 
0 70702 
0 70697 
+ 
5 
24° 0 » 
0.70135 
0.70153 
— 
18 
29°. 3 » 
0.69600 
0.59594 
+ 
6 
/ 33°.8 » 
0.69124 
0.69115 
+ 
9 
l 35°.55» 
0.68921 
0.68930 
— 
9 
1 35°.85» 
0.68885 
0 68897 
— 
12 
J 36 O .2 » 
0.68875 
0.68859 
+ 
16 
\ 870.9 » 
0.68675 
0.68677 
— 
2 
420. 0 » 
0.68239 
0.68235 
+ 
4 
470.4 » 
0.67649 
0.67637 
+ 
12 
Ä 
oo 
0* 
00 
0.67503 
0.67493 
+ 
10 
/ 530.0 » 
0.67058 
0.67030 
+ 
28 
l 530.6 » 
0.66950 
0.66964 
— 
14 
) 530.8 » 
0.66914 
0.66941 
— 
27 
1 540.4 » 
0.66880 
0.66875 
+ 
5 
\540.4 » 
0.66881 
0 66875 
+ 
6 
