The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students (1901)
Williams, Francis H. (Francis Henry), 1852-1936 · New York, Macmillan · leaf 222
Fig. 124. Patrick W. May 13, 1900. Third X-ray tracing. Apex of right lung clear, showingthat the shaded area was probably not due to tuberculosis but perhaps to remains of acute pneumonia.Broken and full parallel lines indicate position of diaphragm in expiration and inspiration respectively…
Radiography · X-rays
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