Ke) BOTANICAL GAZETTE [JANUARY 
Non-electrolytes. 
Those tested in this connection were phenol, resorcinol, and thymol. 
The investigations by BADER (5) on the conductivity of phenyllic 
compounds showed that in the substances here concerned no ioniza- 
tion is to be found. We have, therefore, here to do with entire mole- 
cules. 
TABLE IV. 
PHENOL. 
I gram-molecule Growth in 24 hrs. 
AUGUST 5 
ONS TUNG bien 6h oh ceria wine wide es Vere 5.0mm 
BS ae Cae) Ceeee eens 6.5 
aoe fiters 4 samo. ooo te ae 6.0 
Bustilied Water... 0c. 66s eeu 41.5 
AUGUST 7 
Reet ees ce, ee et sy Ber I.omm 
Too nai BEAL a eee ee 2.0 
CEU EERE Nace ene u sens ew sleraiy RO 2.0 
150 liters isa Riga ota a hea eres ac 
Distilled water..... mere ilakalt! Sn aecane 10.0 
An inspection of the results shows no apparent amelioration result- 
ing from the presence of the solid. It should be noted, however, 
in passing, that compared with the electrolytes used, phenol is a 
weakly toxic substance, and the plants are apt to make a good growth 
in solutions containing a comparatively great number of molecules (Q). 
TABLE V. 
RESORCINOL. 
