--- Michael & Robin, This is the page that mentions the way that the characteristic greenish color of the light was obtained, with some other interesting stuff.
http://www.chem.leeds.ac.uk/delights/texts/Demonstration_19.htm Apparently the greenish color occurs when the oxygen is cut-off or starved, which was apparently a likely occurrence back then, either planned or unplanned. Hydrogen was easily extracted from town gas but oxygen would have been comparatively expensive, one supposes. "Apart from thermoluminescence calcium oxide exhibits also so-called flame luminescence. When the oxygen of an oxy-hydrogen blast lamp used in the production of the limelight is turned off and the hydrogen flame is allowed to play over the surface of the slowly cooling lime cylinder, a greenish glow may sometimes be seen in the regions reached by the flame." As to possible hydrinos- maybe they could be involved directly in the green color. The ecologists would love that. The alternating and sequential redox is interesting in the context of possible hydrino formation - quote: "Luminescence is produced by actual contact of certain zones of a hydrogen flame with the material to be excited. Rapid oxidation and reduction appear to be essential." Could not luminescence to some extent equate to UV (13.6 eV etc) being downshifted? Jones
