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Scientific American, Vol. 78, No. 7 (February 1898) (1898)

leaf 4

An illustration from Scientific American, Vol. 78, No. 7 (February 1898), 1898, leaf 4
with the X rays are capable ofbeing squaredwith an ad just-able table. Thepatient is laidon the table,Fig. 1, and afluorometerappliance isadj us ted asshown inFig.2.The fluorome-ter is broughtwith thebody into par-allelism withthe rays ; thatis, when theproper positionof the cross sec-tion is… … © 1898 SCIENTIFIC AMERICAN, INC. 102 gtuntiiit %mtxum. | February 12, 1898. grave. After what has been said about the nature ofthe Roentgen shadow, it requires no argument to showthat a very slight variation of the position occupied bythe head would produce a distortion which would pre-clude…

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