[ 44 ] 
Now to compare the powers of thefe different folvents we muft 
remark, that as an ounce of barilha contains 115 grains of mere 
alkali, the folution of it being made in fix ounces of water, each 
ounce of the folution muft contain the fixth part of 115, that 
is I9 grains; and in the fame manner it will be found that 
an ounce of the folution of Dantzic falt contains 50 grains 
of mere alkali, that of Cunnamara kelp 2,8 grains, cafhup 15, 
CLARKE’ 21. 
THEREFORE 4,2 grains of faline fabftance of kelp performed the 
fame effet, 
As 45 of that of Dantzic, 
38 of that of barilha, 
15 of that of cafliup, 
21 of that of CLARKE, 
213 of foap. 
I auso tried the power of lime water, but found that three 
ounces of the ftrongeft diffolved very little of the colouring matter 
as fhould be naturally expected, for the three ounces did not 
contain above 3 grains of lime, nor did the mixture of fulphur 
render it more active. 
From the foregoing experiments we may now deduce the fol- 
lowing practical propofitions : 
if, Liver 
