Morton, Edward Reginald, 1867- · New York : E.B. Treat & Co. · leaf 177
t must be considered. The firstrequirement is plenty of power; either a high tensionrectifier of the Snook type, or a modern fifteen-inch coilwith a mercury break for ordinary use and a large electro-lytic break for instantaneous exposures. The next 150 TEXT-BOOK OF RADIOLOGY. essential is a proper… … Fig. 60. Screening Stand. independently. It is also provided with a rectangulardiaphragm, adjustable from the screen side duringobservation. A ledge is provided on the back of the PRECAUTIONS. 151 screen to support a plate during- exposure. A stand withall these movements is sufficient for most…
