Considerations on the medicinal use, and on the production of factitious airs / by Thomas Beddoes. Part II / by James Watt.

  • Thomas Beddoes
Date:
1795
Catalogue details

Licence: Public Domain Mark

Credit: Considerations on the medicinal use, and on the production of factitious airs / by Thomas Beddoes. Part II / by James Watt. Source: Wellcome Collection.

Provider: This material has been provided by University of Bristol Library. The original may be consulted at University of Bristol Library.

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    GENERAL DIRECTIONS trtgfe USE OF THE APPARATUS, stil vtjj oirii ?l^q itfc-> t'!^J«w on j/srfi t.T oiiyr adl nvch AS it has been already mentioned that the fire-tubes are more 'convenient for general purpofes than the alem- bics, it may be proper to defcribe their ufe firft. .LoiioijJi^ni•3'/oc!.s.'.,?^>,<i oris J U*^\{ hi tJuiii .'>rii Fire Tubes. Thruft the plug fent with the appara- tus into one end or the tubej and holding it perpendicu- larly refting upon that end, put into it what quantity you pleafe of the material to be afted upon, taking care that the whole lie within the wide part1. Lay the tube upon its fide, take out the plug, anoint the end piece, which correfponds to the conducling-pipe, with the Firi-lutc hereafter defcribed, and (having firft put one of-the call iron rings upon that end or the tube] infertit into the tube, turn it round a little, preffing it in at the fame time, and then give it a gentle blow with a piece of wood, to force out the fuperfluous lute. Pafs the fire-tube through the two holes made in the furnace to receive it, and put the remaining iron ring upon the other end of it, fo as to fill the hole on that fide. Anoint the conical end of the condu&ing-pipe with lute, and thruft it into the end piece above-mentioned, letting it incline about an inch towards the refrigeratory, into the receiving-pipe N of which the other end muft be inferted, being previoufly anointed with the Cold Lute hereafter defcribed. Join the pipe O of the refrigeratory with the communicating pipe P of the hydraulic bellows, ufing the above lute for the joints. Thefe being adjufled, anoint the other