1180 
corresponds to '/,,, of a degree in the temperature and to this same 
amount the temperature in the eryostat could be kept constant for 
a long time, when the conditions were favourable. The accuracy of 
the measurements in the volumenometer could be made much higher 
without any difficulty. Taking into account the specially favourable 
conditions under which the measurements were made, we think 
we may put the accuracy of our results for the liquid densities at 
‘Ieeooe. AS regards the vapour densities we must suspend judgment, 
as certain deviations are left as yet unexplained. 
§ 5. Results. The results are plotted in fig. 1 and contained in 
the following table. The plot as well as the table also give the 
previous Leiden measurements of the liquid density between the 
| vel: toc xe AE 
0 | T | Pr |" F sd y(Q) | HO) | abs. in 0/0 
| | | ENOTES SIE ce iss 
= "240.57 32-52 0.04316 0.01922 0.03119 0.03128 —0.00009 —0.29 
In a | | | 
5 gs) 24183 31.26 5001 1366, 3184 _3178| + 6 + 19 
a | | | | 
Zó | 243.03 30.06 5402 1081 3241, 3225/4 16 + 49 
=ro | 
2932 l 244.30 28.79, 5740 806, 3213| 3275|— 23— 6 
O5 s¢ | 
E = fae 
gEe 245.73 27.36) 6050, 613, 3382, 3331 + Dae 
ES Of 247.79|25.30| 6416/ 405) 3411) 3412] — Ie 13 
< | | | | | 
= ‘|. 249.89 |23.20| 6724 264, 3494, 3495 | — f\asteny 
5 —252.68| 20.41 0.07081 | 0.00135 | 0.03608) 3605 + 3) 4-1 8 
| 253.24|19.85| 7137 | 116| 3627| 3627 0 0 
05 | | | 
ns 253.76|19.33; 7192 | 101] 3647|  3648|— el 
Ze | 
6& 255.19/ 17.90, 7344 | 64] 3704 3704 0 0 
TO | | | 
go 255.99/17.10| 7421 | 49| _3736| 3735 | + 1+ 3 
ae | | 
aje 256.75|16.34\ 7494 38| 3766) 3165 + Be m3 
== | | 
Zz 257.23/15.86| 7538 | 31| 3784) 3784 0 0 
& | 
ed 258.27| 14.82] 7631 | 20| 3826 3825.) + We See) 
—_—— — — — ————_— ———— — = — Se! Se = — = = — — —— — — 
6 = temperature on the Kwrvin-scale in degrees centigrade. 
Orig. and OP rap, Are the densities of the liquid and vapour 
respectively, in grammes per cm’. 
y (Q) is the observed ordinate of the diameter, i.e. the mean 
of the figures in the previous columns. 
