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Experiment VI. 
The refiduum of the triturated infufion, Experi- 
ment IV. was boiled over a flow fire in three ounces 
of water, for the fpace of twenty minutes. The 
decoction when cold was ftrained off, it was of a 
paler colour than the decodions mentioned Experi- 
ment II. although there was a portion of powdered 
Bark, fufpended in it, which, by the trituration, had 
been rendered fine enough to pafs through the filter. 
This powder, on {landing, fubfided to the bottom of 
the veflel, and left the decodion much more limpid 
than it was before. 
To equal quantities of this, and of the two de- 
codions mentioned above, one dram of the chaly- 
beate folution was added j the black tinge was mani- 
feftly weakeft in this decodion, though the difference 
was not fo great as might have been expeded, from 
the diverfity in their fenfible qualities of tafte and 
frnell j owing perhaps to the fine powder of the 
Bark, which floated in it, and retained fome degree 
of its original aftringency. 
Experiment VII. 
Equal quantities of the Ample and triturated in- 
fufion were boiled for the fpace of feven minutes 
over a quick fire ; both loft their tranfparency when 
cool j but the latter aflumed a much more turbid 
appearance than the former, exceeding even that of 
the decodion from frefh Bark, Experiment I. and, 
after {landing twenty-four hours, it depofited a very 
copious lediment. 
i 
Ex PE- 
