JB/106/011/003

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or boiling which
from Townsend?
certainly baking cheapest - Boiling heats a great superfluiting of water. No use converting any of it into steam.

If the water
would not rise
- the higher or
much the higher
for the smallness
of the content of the
inferior part,
Valves and locks
would be of no
use: as the water
will not
sink but in
proportion as
it is drawn off
by the wicks &
replaced by the
air that rushes
in through them.

The use of
the cocks is to
make the vessl
air tight at
the height where
they are placed,
whereby the water
may be let
down below them
and so a greater
bulk of air be
subjected to the
flash.

But Quere,
whether there
can be any advantage
in that?
since by having
so much more air

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air below the utmost you omhaps for is to replace it with and equal volume of water, and that you have already On the contrary you can hardly expect to replace with water above half the bulk of air Mouths Number the more cocks the quicker the water is drawn of and the quicker may be the succession of flashes, & the more water drawn up within the engine time A second flash can not be made without letting in the air which drives down the water to the level with the pond unless detained by Valves. The use then of valves is to be secure the containance of so much water as above the, deny

Identifier: | JB/106/011/003"JB/" can not be assigned to a declared number type with value 106.
Date_1		Marginal Summary Numbering	1-6, 18-26
Box	106	Main Headings
Folio number	011	Info in main headings field	flash-pump
Image	003	Titles
Category	marginal summary sheet	Number of Pages	2
Recto/Verso	recto	Page Numbering
Penner	jeremy bentham	Watermarks	[[watermarks::l munn [britannia emblem]]]
Marginals		Paper Producer	benjamin constant
Corrections		Paper Produced in Year
Notes public	includes drawings	ID Number	34599
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