934 
TABLE 1. 
i seis a ESD AEN SE 
t | B 5 
110 0.0157 —0.00120 
120 —0.0146 —0.00095 
130 —0.01355 - 0.00070 
140 — 0.01255 —0.000535 
150 —0.01175 —0.00039 
160 —0.0111 —0.00023 
170 —0.01035 —0.000165 
180 —0.00975 —0.000115 
190 —0.00910 —0. 000030 
200 —0.00855 —0. 000065 
220 —0.0075 —0.000036 
240 —0.00655 — 0.000024 
260 —0.0058 —0.000016 
280 — 0.0051 —0.000014 
300 —0.0045 —0.000015 
350 —0.0032 —0.000013 
400 — 0.00225 —0.000012 
450 —0.0015 —0.000010 
500 —0.00105 —0.000008 
550 —0.00068 —0.000006 
. As in ammonia, here also deviations show themselves at the lower 
temperatures (below 250° C.). 
From these data, according to Kerrsom’s calculations, the radius 
and the dielectric moment can be derived for the water molecule, 
when assumed spherical. / 
In this way we find o=3.21.10-8 em. and m,=2.62.10=18 
in e.s. units. 
Calculating these quantities for ammonia also, in the same way, 
I found 9 = 3.54.10 -8 em. m, = 2.36.10—!8 e.s. units. , 
