222 Experiments on the Oxygenated 
repeat some of them, I would caution them noé ¢o 
use greaier quantities than are here specified, parti- 
cularly where the terms ‘violent detonation, eis 
_ sion, é&c. are employed. 
I would not by any means wish it to be under- 
stood, that I have exhausted the subject: many 
_ more experiments, and much labour and assiduity, 
are required before the nature and uses of so ac- 
tive a substance can be fully ascertained, 
I find it has been introduced into medicine with 
success ; and I hope its good effects in that respect 
will not be frustrated by, the high price of the arti- 
cle, as it may be procured at a much cheaper rate 
than it is commonly charged. 
I. ON THE PREPARATION OF THE SALT 
AND ITS SOLUTION IN WATER AND THE 
ACIDS. 
Finding that a quantity of gas sila occasion- 
ally from our apparatus for making the new bleach- 
ing liquor, more especially when the fire was not 
properly managed, or when, by any other means, a 
greater quantity of gas was produced than the liquor 
could absorb; I thought it would be useful to adapt 
to the large apparatus a smaller one, in which this su-- 
perfluous gas might be condensed; as the escape of 
it was sometimes disagreeable to the workmen. This 
I did by filling an earthen-ware bottle with a strong 
solution of potash in water, (consisting of about three 
