1398 
In Table IT our measurements are placed together with those made 
at Halle by ScmierLoH and Scamitt, which are marked with an 
asterisk. From this table and from fig. 1 it can be seen that our results 
correspond very well with the previous ones. Only Scamirt’s result 
in liquid air seems to be too high, which perhaps may be explained, 
as in Kopscn’s experiments with hydrogen, by the gas not being 
sufficiently cooled before it came into the capillary tube. 
TAA BAE IL 
Viscosity of helium at about normal density 
and representation of the dependence on the 
temperature by empirical formulae. 
TOK Uops.” my Us zr "Neale." 07 
456 .8* 2681 | 2682 2632 
Sie: | 2337 | 2345 2309 . | 
294.5 — 1994 1982 
291 .8* 1980 {1979 1970 
2090.7* 1967 | 1974 . 1965 
250.3 1788 1771 1783 
Bel PA 1587 1563 1603 
203. 1 1564 1513 1558 
194.6* 1506 1460 1516 
| 170.5 1392 1317 1389 
89.75 918.6 745 918.5 
[79 .9* 894.7 659 | 9852.1] 
15.5 | 817.6 628 821.3 
74.7 | R82 slo bal 815.5 
20.17 | 349.8 135 | 348.9 
15.00 | 294.6 92 288.7 
§ 2. Representation of the observations by a formula. In the same 
table under 1.107 the values are given which SUTHERLAND’s for- 
mula gives with the assumed values of a, and C. Scumirt has already 
found that at the temperature of liquid air a distinet deviation appears. 
For this observation the same is true as we said about that of 
