JB/537/365/002

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An Account of an easy and expeditious Method of obtaining
Nitrous Air.

Take Salspetre One pound, Charcoal three ounces
reduce them by grinding them together in a Mortar into a
very fine Powder. Let this Composition be gently rammed into
Tubes made of white Paper, the Diameter of whose Bores should
be near 4 Tenths of an Inch and their lengths between 3 & 4
Inches which will be found to be the most convenient Size. Perhaps
it would be worth while to try Touchwood instead of Charcoal.
perhaps a less quantity would serve

The Composition in the Tubes being set on fire and then
put into water, and held under the Jar, the Deflagration of the
Nitre will continue and the Jar will be presently filled with Air.

When the Air is first separated some smoke will be among
it, but that will soon subside, and then by transferring the Air,
it will be perfectly clean.

The above Quantity of the Composition will produce about
20 Gallons of Air.

By this method I can obtain nearly as much Air in a few
Minutes as could be done by the usual means in as many days,
& from a variety of Experiments it appears to be the true Nitrous
Air.

I find it most convenient to hold a Receiver with one hand
in a pail of water, and put the Tube under it with the other.

Vous voyer bien que quelle que soit la composition
du physician, la composition de l' est a
peu pres la meme que jamais, mais n'importe
tenons nous-en a ce qu'il y en a de lon.

Si pour vrai dire, ne vous voila t'il pas une
jolie decoration? Ma foi, c'est done a pres &c on peut done maintenant
faire de l'air nitreux a tres bon marche.
Remarquer par parenthese, par rapport a ma ;
que 1.mo des la memoire ne peut gueres
litteralement c'est a dire en y conservant la
, des places. 2do j'ai tache de la traduire
litteralement que cela pourrait se faire: c'est
pourquoi 3, Je ne l'ai traduit ne aussi literalement
elle pourrait l'etre ne aussi bien, a en negliger
pour aussi dire la literalata.

Identifier: | JB/537/365/002 "JB/" can not be assigned to a declared number type with value 537.
Date_1	1775-10-06	Marginal Summary Numbering
Box	537	Main Headings
Folio number	365	Info in main headings field
Image	002	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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