906 8 =6Onthe Process of igs with 
EXPERIMENT ae 
To half an ounce of the acid, 6 drops of the li- 
quid. alkali were. added. This mixture destroyed 
the colour of 315 grains of the decoction. 
EXPERIMENT XI. 
Eight drops of the alkali were mixed with half 
an ounce of the acid. This mixture destroyed the 
colour of 305 grains of the decoction. 
Ona comparative view of the results of these 
experiments, it will appear, that an addition of pot- 
ash to the bleaching liquor impairs its strength con- 
siderably. This diminution of power, and the 
expence of potash, are a serious loss in an extensive 
manufacture. It would, therefore, be desirable to 
have an apparatus for the use of the pure oxygenat- 
ed muriatic acid simply dissolved in water, which 
is at once the cheapest and best vehicle for it. This 
apparatus must be simple in its construction, and 
obtainable at ‘a moderate expence ; it must confine 
the liquor in such a manner as to prevent the escape 
of the oxygenated muriatic acid gas, which is not 
only a loss of power, but also an inconvenience to 
‘the workmen and dangerous to their health; and it 
Must, at the same time, be so contrived, that every 
part of the stuff whichis confined in it, shall cer 
tainly and necessarily be exposed to the action of 
