JB/537/328/001

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4

2 3 Dr Fordyce has not I believe made any experiments on this
subject lately: but this is the method he used,
as he tells me, to put in practice some years
ago. ]

He provided a Trough or large pan of water
deeper considerably deep enough to hold a column of water higher than the mixing-phial
to be employ'd. He filled the mixing phial with
the Metal and the Acid, and while the solution
is was going on, plunges placed the phial beneath the in the
pan or trough, so filled as that the
mouth of the mixing phial may be was underwater.
He then inverts the hold inverted a - Receiver
filled with Water over the mixing phial, so as
to catch the air as it is was generated. By In this
means there is way the Tube of communication is
left out, the water underneath which the
mixing phial is plunged answering the
purpose. Consequently the Air Common Air
that lodges in the Tube of Communication as
well as that which between the surface of
the acid in the mixing phial and the cork,
in short every particle of common Air whatsoever
was effectually excluded. A small waste
indeed of the materials is was unavoidable but that
is no object. On the other hand the reped His way was to apply the me

Identifier: | JB/537/328/001 "JB/" can not be assigned to a declared number type with value 537.
Date_1	1774-??-??	Marginal Summary Numbering
Box	537	Main Headings
Folio number	328	Info in main headings field
Image	001	Titles
Category	Correspondence	Number of Pages
Recto/Verso		Page Numbering
Penner	Jeremy Bentham	Watermarks
Marginals		Paper Producer
Corrections		Paper Produced in Year
Notes public		ID Number
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