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Henry L. Shively, M.D.; Charles R. Tyler, Ph.G.
JAMA. 1917;LXVIII(25):1901-1902. doi:10.1001/jama.1917.04270060309012.
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A year ago, when the Roentgen laboratory installation was purchased for St. Joseph's Hospital, the limited funds available for the purpose made it necessary to study economy in order to secure all the apparatus desired. By dint of a careful study of our needs, the elimination of everything not strictly necessary, and by collective buying with three other institutions, we were enabled to obtain a complete and satisfactory equipment consisting of a 6 to 10 kilowatt interrupterless transformer, a current generating unit for heating the Coolidge tube, a stereoscopic tube stand, an automatic plate changing table, a Wheatstone stereoscope, and vertical fluoroscope at a very moderate cost—not exceeding $1,200.

The listed prices, from $300 to $700, of the manufacturers of fluoroscopes under such fancy names as "orthoscope," "trochoscope" and "diagraphoscope" seemed out of all proportion to the cost of construction, and we determined to make our own. When it is


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