scientific instrument

Object NameGeissler Tube

Made FromGlass, Metal, Pink Residue

Dateabout 1890-1910

Place Madepossibly Germany; possibly France

TechniqueLampworked

SizeOverall H: 17.4 cm, W: 3.5 cm, D: 2.3 cm

Accession Number2014.8.45

Curatorial Area(s)

Not On View

Physical DescriptionGeissler Tube. Colorless glass, metal, pink residue; lampworked. Glass tube with two bulbous ends, each containing a metal rod. One end has small pulled glass attachment. Cylindrical tube between ends contains thinner tube manipulated spiral flanked by two bulbous shapes; open-ended cylindrical tube held within spiral. Outer tube has short cylindrical vacuum tube. Interior of outer tube covered in bright pink residue.
Provenance

Source Chayette & Cheval - 2014-03-13