Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . Face Lathe. about 8 inches lonj;, curved, and fenestrated at oneextremity. A wire loop lirst jiassed around theobject to be extirpated, is drawn tlirough tlie lenes-trum slowly, by means of eitlier a .screw or lever atthe other end of the instrument, thus crushing it oti. By this method (ecrasion) the loss of blood isavoided. La-ryngo-scope. An instrument fo
Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . Face Lathe. about 8 inches lonj;, curved, and fenestrated at oneextremity. A wire loop lirst jiassed around theobject to be extirpated, is drawn tlirough tlie lenes-trum slowly, by means of eitlier a .screw or lever atthe other end of the instrument, thus crushing it oti. By this method (ecrasion) the loss of blood isavoided. La-ryngo-scope. An instrument for obtaininga view of the larynx. It consists of a small planemirror a on a long, slender stem, which is intro-iluced to the back of the throat, and a lanjc concavemirror b for reflecting liglit (solar or artificial).This last reflector may be either fixed to a stand orsuspended fiom the forehead of the operator. Aninverted image is seen in the small mirror. The up-per figure is Elsbergs laryngoscope. When artifi-cial light is employed, the patient should sit so thatit is a little back of him and on his right side, as inTiemans instrument (the lower figure). In thiscase, the light is reflected by a concave mirror c to Fig. Elsbergs and Tiemans Larijngoscopes. the smaller mirror, which is held liv the observer atthe posterior part of the mouth, the uvula restingupon its back. By its means, the vocal chords ofthe interior of the larynx are exhibited, and havebeen photographed. One constructeil by Dr. Turckin 1857 was modified and improved Ijy Dr. Czer-mack of Pesth, 1856, who exliibited it in action in Fig. 2816. 1862, in London. Jlr. ,lohn Avery of London is .saidto have constructed a similar apparatus in 1846. La-ryjigo-tome. Laryngotoujy, or the open-ing of the larynx, was practiced by the ancients in(|uinsey- It was reconmieuiled by the (ireck andArabian phvsicians, by Galen and Asclepiades de-cidedly. Xiash. 1. (Jfeaviiici.) A thong formed of thecombined ends of the co
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