The Turn Of The Century Electrotherapy Museum
(C) Jeff Behary 2011 

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"Hg Jones" tubes...
Frank hand carrying Mercury tubes from Lutz Neumann's factory to the USA

Replica Morgan high vacuum tube with mercury vapour  - the arc appears greenish, though the vacuum is a Crookes vacuum
Must wonder though if in the original experiment it was the glass itself that was green (ie, X-Rays??)

Man in a Crookes Tube!

4 Triboluminescent tubes, 3 with neon and one high vacuum.  Cool!

Awesome Frank!

(C) Jeff Behary , 2012