Green glass swan necked retort, English(?), 1760-1870

A retort is used as a container for substances during the chemical processes of distillation and decomposition by heat. The substance is placed in the glass bulb which is then heated. The products of the reaction pass through the long, swan-like neck, which may be connected to other equipment. Retorts were also used in the preparation of drugs. Probably produced in England, this example is made from green glass and is 770 mm in length. It is shown here with a furnace (A630661).