United States. Surgeon-General's Office, American Roentgen Ray Society · New York : Middleditch · leaf 136
^ V Fig. 3 Double fluoroscope. also designed by Dessane, for the combineduse of the Roentgenologist and the surgeon during the operation. … Fig. 4. Protective apron. Shoulder straps cross on back. Apron com-pletely encircles hips. 129 130 X-RAY MANUAL—U. S. ARMY with lead glass having an absorbing quantity equal to )|about 1/64 of an inch of lead. Or the fluorescent |screen itself should be covered by lead glass having a Jsimilar…