X-rays simply explained : a handbook on Röntgen rays in theory and practice (1904)
Howgrave-Graham, Robert Pickersgill, 1880- · London : Percival Marshall & Co · leaf 32
(h) … Fig. 3,—Experiment for showing the fusing of the glass wall of aCrookes tube by a magnetically deflected, focussed cathodestream. placed in the path of the cathode stream cuts it off,and a shadow or non-tiuorescent area is producedon the walls of the tube or on any screen of tiuorescentmaterial…
X-rays · Radiography
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