The method and plain process for making pot-ash : equal, if not superior to the best foreign pot-ash published, in consequence of the late encouragement granted by Parliament for that purpose / By Thomas Stephens.

  • Stephens, Thomas, -1780
Date:
[1755?]
Catalogue details

Licence: Public Domain Mark

Credit: The method and plain process for making pot-ash : equal, if not superior to the best foreign pot-ash published, in consequence of the late encouragement granted by Parliament for that purpose / By Thomas Stephens. Source: Wellcome Collection.

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    t [ 2 4 ] then given to the Air through the two Openings; and the Fire differed to bum brifkly, and even affided by lome frefli Bundles, if it will not rife ftrongly without; and this mu ft be continued till the whole Matter, that will burn, be perfectly con- fumed. After which the Openings mu ft be clofed till the Kiln be fufficiently cooled to fuller the incinerated Mafs or burnt Matter in its Bottom to be examined. This Mafs, or burnt Matter, is the Barilla: which, if the Operation has been rightly performed, will appear in the form of a Cake , of a hard Confidence, of a blueifh grey Colour throughout, free from any offend ve Smell when moiftened, and having little Holes like Partridge Eyes, from whence the bed Kind has taken its Name. The Cakes mud be then broken; taken out of the Kiln ; and packed up in tight Calks. The prefent Price of the bed or Par¬ tridge Eye Barilla is of about eighteen Pounds per Ton value. A P p E N-