Signedunsigned
FunctionIn Griffin's catalogue this is listed as a "Florentine Receiver," for use in the distillation of volatile oils and their separation from water.
It may also be for pouring off chemicals from the bottom that have froth on top, or to separate a heavier liquid from a mixture of liquids with different densities.
Primary SourcesJohn Joseph Griffin, Chemical Handicraft: A Classified and Descriptive Catalogue of Chemical Apparatus, Suitable for the Performance of Class Experiments, for Every Process of Chemical Research and for Chemical Testing in the Arts. Accompanied by Copious Notes, Explanatory of the Construction and Use of the Apparatus (London: John Joseph Griffin and Sons,1866).
In the 1877 edition, see item "Florentine Receiver, no. 1862" for use in the distillation of volatile oils and their separation from water.