A manual of diseases of the throat and nose : including the pharynx, larynx, trachea, oesophagus, nose and naso-pharynx . structed on the reading-lampprinciple, so that it can be fixed at different heights. My rack-movement 1 Die Laryngoscopie, etc., Wien, 1863, p. 13. 2 Loc. cit. p. 22. 164 DISEASES OF THE PHARYNX, LARYNX, AND TRACHEA. laryngoscopy lamp, which readily admits of perpendicular and horizontalmovement, will be found to greatly facilitate the management of thelight. Its action is shown in Fig. 14. The power of the light is increasedby a lens placed in front ftf the flame. My lamp


A manual of diseases of the throat and nose : including the pharynx, larynx, trachea, oesophagus, nose and naso-pharynx . structed on the reading-lampprinciple, so that it can be fixed at different heights. My rack-movement 1 Die Laryngoscopie, etc., Wien, 1863, p. 13. 2 Loc. cit. p. 22. 164 DISEASES OF THE PHARYNX, LARYNX, AND TRACHEA. laryngoscopy lamp, which readily admits of perpendicular and horizontalmovement, will be found to greatly facilitate the management of thelight. Its action is shown in Fig. 14. The power of the light is increasedby a lens placed in front ftf the flame. My lamp is now used in nearlyevery hospital in this country where laryngoscopy is systematically em-ployed. For use at the bedside, where gas is not at hand, my new clinicallamp will be found very serviceable. It has the same action as the rack-movement lamp, but paraffin is used for illumination instead of gas. Itmakes a very useful lamp for the consulting-room. By reference to thewood-cut (Fig. 15), it will be seen that the base of theapparatus can behooked on to the bar of a bed, and that the perpendicular stem rotates,.. Fig. 15.—The Clinical Lamp. In the illustration, the lamp is seen hooked on to the horizontal bar ofa bed; the dotted lines show the position of the base when the lamp is standing on a table. so as to adapt itself to this position. On the other hand, when in use onthe table, the stem can be easily adapted to the upright position, by meansof the screw at its foot. In the various lamps or lanterns recommended by different foreignlaryngoscopists (Tobold,1 Moura-Bourouillou,2 etc., etc.), the arrangementof lenses in each of them is only applicable to the particular lamp forwhich it was contrived. This serious objection to the various kinds ofilluminating apparatus hitherto in vogue, led me to contrive a light-con-centrator of more extensive application. It not only gives a very brilliantlight, but is at the same time much smaller, and therefore much moreportable than


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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherne, booksubjectnose