786 
In table II are recorded the ratios of the solubilities of the three 
examined acids in each of these fatty oils, in which the solubility 
of cinnamic acid is always put — 1. As clearly appears from these 
values, there is no question of a proportionality of the solubilities 
(of the coefficients of distribution fatty oil-water); the oscillations 
TABLE II. 
DR VTT EE en men 
Olive oil. |Cotton-seed oil.;Arachis oil I.\Arachis oil II.;\Cocoanut oil. 
; es | | 
cinnamic acid | 1 1 1 1 
salicylic acid 1.88 ta rhe 1.74 1.68 1.80 
benzoic acid 3.07 2.93 2.95 2.80 2.81 
are even so considerable that the parallelism between the solubilities 
of the acids (hence also between the coefficients of distribution 
fatty oil-water) in the different oils becomes questionable. 
c. When we now consider linseed oil’), which has an entirely 
different constitution, as it consists for the greater part of glycerides 
of linoleic acid and isolinoleic acid, we see the ratios of solubility 
modified so radically and unaccountably that there is not even any 
question any longer of parallelism of the solubilities of our acids 
(or of the coefficients of distribution fatty oil-water). While e.g. 
TABLE III. 
CoN SE een en EE EEE I ETE EER SS RRS IE SE AE A EE ED 
Ratio of solubility. 
Linseed oil. Ricinus oil. 
cinnamic acid | 1 
salicylic acid 2.07 1.97 
benzoic acid 2.57 1.95 
cinnamic acid and benzoic acid are less soluble in linseed oil than 
in cocoanut oil, the solubility of salicylic acid is on the contrary 
greatest in the first oil. 
d. These facts make themselves felt much more strongly even in 
ricinus oil, consisting chiefly of glycerides of “ricinoleie acid” 
C,,H,,O,. This oil, indeed, occupies a place of its own: it is mis- 
\) It may be remarked here that such a strongly drying oil can of course | 
present no resemblance at all with any lipoids of the cell-wall. We examined 
also this oil, however, as it represents quite a type apart. 
