The Röntgen Rays
The Röntgen Rays.
We beg to send you a negative of a frog taken by Prof. Röntgen's method. The clearness with which the several bones have come out is so remarkable that we consider the picture well worth reproduction, and trust you will find space for it. The larger transparent patch upon one side of the vertebral column is due to a distended lung, its collapsed fellow being evident upon the opposite side (this was proved by subsequent dissection).
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If you will carefully look into the larger transparent patch, you will see that the reticulated structure of the lung is evident, but we fear is too slight to bear reproduction by photo-mechanical means.
The negative was obtained by means of a small induction coil (2-inch spark) directly connected to a highly exhausted simple cylindrical Crookes' tube.
This work is in the public domain in the United States because it was published in 1896, before the cutoff of January 1, 1929.
This work may be in the public domain in countries and areas with longer native copyright terms that apply the rule of the shorter term to foreign works.
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