564 APPENDIX 
SOLUBILITY OF OXYGEN IN WATER 
(Winkler, Berichte, 22, 1772.) (1889) 
Tempera- Oxygen. Temperature. Oxygen. Temperature. Oxygen. 
0 14.70 9 11.58 18 9.56 
1 14.28 10 11.31 19 9.37 
2 13.88 11 11.05 20 9.19 
3 13.50 12 10.80 21 9 O1 
4 13.14 13 10.57 22 8.84 
5 12.80 14 10.35 23 8.67 
6 12.47 15 10.14 24 8 51 
7 12.16 16 9.94 25 8.35 
8 11.86 17 9.75 
CIRCUMFERENCES AND AREAS OF CIRCLES 
Formula for Area 
d = = 785898 D? 
Formula for Diameter 
D= =a 4-1, 128379 VA 
Diameter. | Circumference. Area. | Diameter. | Circumference. Area, 
¢ .39270 .012 7 21.991 38.485 
4 . 78540 049 8 25.133 50.265 
3 1.1781 110 9 28.274 ~ 63.617 
4 1.5708 . 196 10 31.416 78.54 
3 1.9635 307 20 62.832 314.16 
3 2.3562 442 30 94.248 706.86 
Ks 2.7489 601 40 125.664 1256.6 
1 3.1416 185 50 157 .080 1963 .5 
2 6.2832 3.142 60 188 .496 2827.4 
3 9.4248 7.069 70 219.911 3848 .5 
4 12.566 12.566 80 201.328 9026.5 
5 15.708 19.635 90 282.744. 6361.7 
6 18.805 28.274 100 314.160 7854.0 
