Glass TubeLead Wire figure 8. tubing, such as is used in the water gauges onsteam boilers. They are to be firmly set in theholes in the base, a little to one side of thecentral axis of the coil and to project about 4inches above the top of the coil. [6 SOMETHING ABOUT X RAYS. On the top of each… … figure 9.secondary coils, which should both be gutta-percha covered, are to be taken by the nearestpaths to the tubes, to the inside of them,through holes drilled for the purpose, and then
X-rays · Fluorescence
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