Walsh, David · London : Baillière, Tindall and Cox · leaf 111
elling clamp that grips the focus tube. A wire cross dipped in an aniline dye is laid on the plate to mark the patients skin, and the path of the rays is traced by silk threads attached to the scale at points corresponding with the focus tube during the two exposures and carried down to the images… … Fig. 41.—Three Bullets in Head of a Cadaver; One in Neck; reduced- about one-third. MEDICAL AND SURGICAL APPLICATIONS 97 are fixed by small weights. The point of intersection of thethreads marks the position of the foreign body. Mr. Hall-Edwards has a good localizer, in which a chequeredgrid lies…
X-rays · Radiography
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