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Kenny  Kenny is offline
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Join Date: 13 Sep 2006
Location: England
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Kenny 
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I do agree this card is strange. From what I gather the idea of the card is purification though repeated distillation.

Basically the vessel pictured is a bastardised purification vessel--cannot remember the name right now--in reality there were just two chambers, and two pipes. There was an upper chamber, a lower chamber, and the two pipes.

What happened was the liquid in the lower chamber was boiled, the steam then went up one of the pipes to the cold top chamber. In the top chamber the steam condensed and the purified liquid then flowed back into the lower chamber. This process could be repeated many times.

The image on the card could show this process being completed many times, each time the liquid becoming purer and purer.

Though I could be way off with this...
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