[Bubier], Edward Trevert, 1858- [from old catalog] · Lynn, Mass., Bubier pub. co. · leaf 249
t willnot produce X-Rays. What light there is to beseen should be a green color. The glass bulb isexhausted of nearly all air and gases, making RECENT APPLICATIONS. 217 nearly a perfect vacuum. This vacuum differsfrom that in an incandescent lamp or a Geissiertube, viz. : It is so complete that… … FIGURE 2. discharge from the induction coil is sent throughthe Crookes tube, there appears in the tube a fluo-rescent light of a yellowish green color. Theserays are particularly strong around the cathode, andare called cathode rays. Several important facts about the Crookes tubewill bear mention…
Electricity
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