881 
(by — (b,)) : 6, = 0,041 V T follows that for Argon, where V 7,= 12,27, 
by : (b,) = 1,508. Hence for b,: 6, would be found 1,508 : 1,066 = 
= 1,410, because J, : (6,) = 0,305 : 0,286 = 1,066. Hence the value 
of (b, —b,):b, is 0,410, so that for 7%, this value can be represented 
by (0,410 : 12,27) WT, = 0,0334 WT); and we can, therefore, write 
— at least for Argon — instead of (1): 
bb 
50,0884 YT. So ee ere) ha) 
From Ay, (6, — 6,2? = fRT and (19) now follows: 
aie R 
es ce cee 
I~ (0,0834)7b,? bo? 
in which, as appears from the derivation of (5) from (4), the coeffi- 
cient 0,0334 will still depend with A, on 7 through 6, in a slight 
degree, and is strictly speaking only valid at 7%, i.e. the tempera- 
ture at which we calculated just now this coefficient from that of 
equation (1). 
Combination of (5) and (6) now gives immediately : 
d\? Og Net on */¢X 6.108 X (4,825 . 10-10) 
a WBD Te 896 83,15. 10° 
In this (4,825.10—19)? = 23,28.10—°9, and we find: 
d ae 6 n 3.88.10? zel n 5-01. 10-8 7 
85 = — Vg f 5 7,45.10" — Wg ra ae o,al. ° . ( ) 
For MN, Avocapro’s value, we have substituted, the most probable 
one, viz. 6,0.10% for NN, as it follows both from Pranck’s theory 
of radiation and from the values directly determined by Mi.uikan 
and Norpiunp. If we namely put for WreN’s constant of radiation 
c, =c(h:h) the middle value of Warsure and CoBLENTz, viz. 1,441, 
and for Steran-BoLTzMANN’s constant « the mean value of WrsTPpHAL 
and several others, viz. 7,6.10-!%, we find from the wellknown 
formulae for Ah and 4%: 
Bme 480 EOL = 1,595: 40E io, O0 LIE, 
For N we find therefore 83,15.10° :1,393.10-16 = 5,97.107* from 
R=N Xk. MiLrikAN’s value is 6,06.10?*; NorpLunp’s is V—5,91.107* 
(Z. f. Ph. Ch. 87, p. 62). The mean of these three values is 5,98.10°°, 
so that witk some probability we may assume about 6,0.10°* for NV. 
For N Xe has been found 107,88 : 0,0011180=96494 Coulomb = 
== 9649.4 electromagnetic units = 2,895.10" electrostatic units. 
Hence we find for the value of the electric elementary quantum e 
after division by MN the value 4,825.10—, 
(6) 
89 
