C 16 ] 
Experiment IX. 
Brandy, or rum, drawn from oak cafks, or an in- 
fufion of green tea leaves, produced a purple color, 
inclining to black. 
Experiment X. 
Somerfbam water doth not lather with foap, but 
curdles immediately. • 
Experiment XL 
Acids caufe no alteration, but mix as at the fpring 
head. 
Experiment XII. 
Volatile or fixed alcalies did not effervefce with 
the Somerfham water, at home, as at the fpring 
head, but produced a cloud, then curdled, and threw 
down a fediment. 
Experiment XIII. 
The Somerfham water, in a few hours, lets fall 
an ochry fediment to- the bottom of the bottle, which 
is of a different color, according to the feafon in 
which the water is taken up; in dry times, the fedi- 
ment is of a rufty, cinnamon, or orange color; 
in wet weather, it is of an olive, or brown color, 
lmelling like the fumes of fulphur. 
Experiment 
