OCR Text |
Show EXPLANATION THE PLATES. PLATE 1, ‘l . - . \ - s 1* mum: 1. represents in a. sketch the first meismn (n the operation tor sneurism in the bend of the arm. A, the sac of the aneurisni, formed of the fascia and condensed cellular membrane. The contracted state of the arm and fingers, characteristic of this ancu‘ W mum rism, is represented" ['20. 2. is a still freer sketch of the manner of lifting the artery on the probe, from the irregular bottom of the cavity in which it lies. A, The probe. B, The artery. C, The irregular cavity, formed by the driving of the blood under the fascia. PLATE II. {eprcsenting the manner of examining and applying caustic to strictum 131' the urethra. F1 G. 1. represents a section of the urethra, as in a simple stricture, with the probe introduced. As soon as the head of the probe has passed the stricture, the wire moves easily onwards, ascertaining that it is a simple stricture. 1‘! c. 2. represents the probe passed into an irregular callosity ofthe canal; where, by the continued resistance to the head of the probe, we know that the stricture is not simple. I'm. 3. shews the insufficiency of the bougie to ascertain anything more than merely the presence of a stricture. |