. American quarterly of roentgenology . X u > w ■ *Jc « (8 £ « £ Sis £ w £ -=£ S = 2-£E-T3 S c-2 s-9- £ CO (S g u 3 3~0 e ° §.5-2is a «_ » • C oT(8 ^ C . mt noJL o v Sl CO o Dunham: Stereo-Chest Plates 117 By this means Plate 1 is seen by one eye, let us say theright, and not seen by the left, while Plate 2 is seen by theleft and not by the right. To the mind this conveys theimpression that only one image is seen, but that image ap-pears as in relief. By this method we have taken and examined in the PhippsDispensary of the Johns Hopkins Hospital more than threehundred stereoscopic expos
. American quarterly of roentgenology . X u > w ■ *Jc « (8 £ « £ Sis £ w £ -=£ S = 2-£E-T3 S c-2 s-9- £ CO (S g u 3 3~0 e ° §.5-2is a «_ » • C oT(8 ^ C . mt noJL o v Sl CO o Dunham: Stereo-Chest Plates 117 By this means Plate 1 is seen by one eye, let us say theright, and not seen by the left, while Plate 2 is seen by theleft and not by the right. To the mind this conveys theimpression that only one image is seen, but that image ap-pears as in relief. By this method we have taken and examined in the PhippsDispensary of the Johns Hopkins Hospital more than threehundred stereoscopic exposures and for practical purposesthese have been very satisfactory. Much of the work hasbeen purely experimental and, as has been said, will be re-ported later. Some cases which have been taken have beenremoved from the series, because the plates did not showsufficient detail and a second exposure was not obtained orthe clinical history was lost. So our series only inc
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