scientific instrument

Object NameGeissler Tube

Made FromGlass, Metal

Dateabout 1890-1910

Place Madepossibly Germany; possibly France

TechniqueLampworked

SizeOverall H: 23.3 cm, W: 5 cm, D: 4 cm

Accession Number2014.8.43

Curatorial Area(s)

Modern
Science and Technology

Not On View

Physical DescriptionGeissler Tube. Colorless glass, metal; 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 flattened spiral shape flanked by eight flattened bulbous shapes. Outer tube has short cylindrical vacuum tube.
Provenance

Source Chayette & Cheval - 2014-03-13