scientific instrument

Object NameGeissler Tube

Made FromGlass, Uranium Glass, Metal, Cork

Dateabout 1890-1910

Place Madepossibly Germany; possibly France

TechniqueLampworked

SizeOverall H: 19.7 cm, W: 4 cm, D: 2.2 cm

Accession Number2014.8.44

Curatorial Area(s)

Not On View

Physical DescriptionGeissler Tube. Colorless glass, transparent yellow uranium glass, metal, cork; 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 into S-shape with bulbous shape at midpoint. Bulbous shape covered in transparent yellow glass. Outer tube has short cylindrical vacuum tube sealed with cork stopper.
Provenance

Source Chayette & Cheval - 2014-03-13