United States. Surgeon-General's Office, American Roentgen Ray Society · New York : Middleditch · leaf 175
el of the skin markings. Thesemarkings are then transferred to the margin of thisopening (Fig. 21) using in this instance distinctivesigns, the + and the —. A better method is the use ofdistinctive colors. The card is now removed and laid Fig. 17-a. The ring pointer. & 3N=€> ■^ 3=0 T T, F*G-… … ^ .F^! 19,-, Diasram showing the use of the fluoroscope and the ring compass toobtainMhe diagonals passing thru the projectile and the stamps to mark them onthe skin. 168
