X-rays simply explained : a handbook on Röntgen rays in theory and practice (1904)
Howgrave-Graham, Robert Pickersgill, 1880- · London : Percival Marshall & Co · leaf 110
are ohtainal^le hy the alternate excita-tion of two sources of X-rays at the correct distance ai»art. A series of stereoscopic shadows is cast on thescreen, hut these yield only a hlurred and in.listinctappearance until some selective appliance confines thevision of each eye of the ohserver to the… … 0(1 \ I! \\s SIMIM.V KXIM.AINKI) ri.Aii VI
X-rays · Radiography
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