1347 
To 10 ce. of the sol were added with constant shaking 5 cc. of a 
solution of the organic substance (or water for the blank experiments 
which were repeated each time) and about 15 minutes later 1 ce. 
of a BaCl, solution. The whole was then again shaken and then 
once more two. hours afterwards; the BaCl, concentration, which 
was just incapable to cause a complete coagulation, represented the 
limitation value. Those values may be taken as being accurate 
within two units in the second decimal. 
In the tables are given the concentrations relating to the final 
total volume in millimols. per Litre. In the last column the limitation 
values have been recalculated so as to make the value for pure 
water. — 1.00. 
From these tables it is indeed evident that the alcohol concen- 
tration has an influence on the limitation value; this influence 
appeared to vary for the different aleohols and therefore it was 
thought desirable to make a comparison of their influence on the 
capillarity of water, with their adsorbing properties, and consequently 
with their power of displacement. 
Tbis comparison may be readily effected with the aid of the 
subjoined figure constructed from data obtained by Travse Le. (The 
line for phenol will be discussed presently). 64,0 is taken therein 
as 76.0. 
80 Cm 
70} 
acht ale. 
60 
50 
NLOpb El: 
40 phenol 
‘ Léa f 
Woarn ale. «tif 
30) 4 abe, 
En am. Mol b. hs, . 
100 = 200 300 400 500 600 700 800 900 1000 
Fig. 1. 
From the tables I1—IV we now notice that the order of the 
admixed substances in which they effectuate an increase of the 
limitation value is: isoamyl, isobutyl, propyl, and amyl alcohol, 
