The gasogene (or seltzogene) was a late Victorian device for producing
It consisted of two linked glass globes surrounded by a
wickeror wire protective mesh because they tended to explode. The lower contained water or other drink to be made sparkling, the upper a mixture of tartaric acidand sodium bicarbonatethat reacted to produce carbon dioxide. It is a siphonin that the produced gas pushes the liquid out of the device.
The gasogene features as a cryptic residential fixture at
221B Baker Streetin Arthur Conan Doyle's Sherlock Holmesstories.
* [http://www.bottlebooks.com/Siphons/mixing_it_up.htm Mixing it up: A Look at the Evolution of the Siphon-Bottle]
* [http://221bbakerstreetla.com/bs_gasogene.asp picture and description] at [http://221bbakerstreetla.com/ 221b BAKER STREET/LA]
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