( 775 ) 
The value of pv, obtained in this manner for 20°0 C. and 15°6 C. 
are given in the following tables. 
| TABLE XII. O, at 20°.00 C. 
Determinations, | dca | PvA 
Series ZI. N°3 | 93.713 | 4.0549 
4| 6.701 | 4.0533 
5} 29.90 | 4.0519 
Series VY. NO 5 | 45.914 1.0431 
6 | 48.023 1.0419 
7 | 48.465 1.0419 
8 | 48.174 | 1.0447 
11 | 50.882 | 1.040 
12 | 50.919 1.0409 
13 | 54.442 | 4.0409 
| Series 7. N03 | 56.927 | 4.0395 | 
4 | 65.396 | 4.0362 | 
TABLE XIII, O, at 15°,60 C. 
Determinations. p | pvr 
| Series ZL. N° 7 | 36.908 | 4.0303 
36 643 | 4 0298 
8 
19 | 38.635 | 4.0986 
20 | 39.749 | 4.0988 
21 42.910 , 4.0966 
22 | 47.683 | 4.0244 
2%) 49.385 | 4.0931 
23 | 51.464 1.0224 | 
| 
§ 14. Measurements under higher pressure at 0°0 C, 
For these measurements the small piezometer reservoir is placed 
in ice in the same manner and with the same precautions as the 
thermometer reservoir in Comm. n°. 27, Plate IIT, fig. 2. The 
51 
Proceedings Royal Acad. Amsterdam. Vol. IV. 
