608 
L 
For 2 we find with this 2,932 and VA = 1.712. Hence 
a, 1 
Gig Dis l (1+ B<n)* 
3 1? AMM ea 
ae. becomes equal to 712 or 
That I put 1+ ¢6,=7 and e, almost 0 was the consequence of 
my opinion, which some circumstances had led me to accept, that n 
1 et ae 3 5 
would be about 5, for ~~" being —— it follows from n= 5 that 
1 
n 3,513’ 
n° 25 
Tiene = ——_. 
3,013 3,519 
1 He == 7451 
We have, however, not been able to find a formula for the accu- 
rate determination of 4, for a substance. We can, indeed, give the 
form : 
REA 
But about rs, for which 8 is an approximate value, we know 
only that this product is < 8, and probably the smaller, as 6 is 
more variable and decreases more rapidly with decrease of v. If 
we attribute this change of 6 to the compressibility of the molecule, 
rs will be the smaller as the molecule is the more compressible. 
0,0123 | 0,0488 
— for water and (bc)e= — 
TS) w : (rs)e 
For ze =n we find heen = 3.92 (re) “. Neither for water nor 
by 0,0123 (rs), (rs)e 
for ether, however, is the investigation exhaustive enough to enable 
us to conclude to the value of rs with perfect certainty. And so we 
can only assume a value of about 4 for 7 with some reservation. 
That I assumed 7 to be a little more than 5 before, was because 
I only intended then to investigate the behaviour of a binary mix- 
ture that should behave in somewhat the same way as the system 
ether water. 
Cad ape 
We then find (bow = for ether. 
l 2,197 
With 7 al to 4,098 we found fr —— for | 
ith m equal to 4, we found from 1,712 = 4,098 or / the 
value 0,91. 
If after this digression we return to the equation 
Wa Sen 
(The = Ba 
we shall have to find the same value for /, because we have put 
the value of (rs), = (rs). in our former calculations. It appears from 
everything that from this equation we can calculate the highest value 
