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JB/538/287/001

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VALVE

I will give you a hint of a very pretty kind of valve invented
as far as I know by Dr Swede: it is applied by him to a glyster
pipe of his invention.

The Tube to be closed terminates in a cup: in this cup
plays a loose ball of lead turned exactly round to as to fit into
and when in a perpendicular situation exactly close the tube, by its own gravity; much more when
pressed by any fluid: it is to prevent the return of the glyster
when injected. He shew'd me one which he had got made
in Germany, & which answer'd the purpose exactly: but he said
it was a difficult a thing to make them fit that a man might
make 18 or 20 before he could make one that would do.

I hope you took care to let Bl. know of the offer your had to
go with Curtis

It is very likely the Nabob would be glad to have a marine; but
Quare would the Company let him.

To know something of Sr Edw. Hughes it might be right
for you to read the Lind's Defence of Ld Paget if you could get it.

Swede knows Priestly & Ld Shelburne — He has dined
2 or 3 times with Ld Sh. He was introduced by his friend Ingenhaus.

Swede knows not of any leather under the name you mention.
He has met with a kind of leather that is very thick & at the same
time very pliable manufactured at Liege. It was at Liege he met
with it. At Paris he saw a man who had a waistcoat &
breeches on that had all the appearance of leather but was
not leather. It was of a buff colour

Swede thinks that any leather whatever might be made very
pliable by soaking in oil after they it has been tanned with the astringent matter
which make it hard. That is the common process. The late Dr Maitland
gave



Identifier: | JB/538/287/001
"JB/" can not be assigned to a declared number type with value 538.

Date_1

1779-01-22

Marginal Summary Numbering

Box

538

Main Headings

Folio number

287

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

Box Contents

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