he whirl- “Gassiot’s wheel,’ produced by the rotation of a single tained in the various brands. This should not, how- ing table, with Geissler tube. Owing, however, to the fragility and ever, be taken to amount to a recommendation to use, which it makes expensiveness ot Geissler tubes and the… … terminates in size. The original of the photograph, Fig. 4, produced Fig. 4.—COLORED ELECTRIC STAR PRODUCED WITH the center at the in this manner with a large generator, was over three Fig. 2.—LUMINOUS GOBLET. INTERRUPTED CONDUCTOR. feet across. Exquisite color effects may be secured by bottom. All…
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![An illustration from Mystic Masonry, or, the Symbols of Freemasonry and Greater Mysteries of Antiquity (1911) [Supplemental Harmonic Series] (1911)](https://img.insideoutlibrary.com/img/200/ia-mysticmasonryors00buck-298-7.webp)
