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The purpose of the head-mirror is to reflect the light that reaches it from a lamp or other source of illumination into the mouth cavity so perfectly that not only the back of the mouth, etc., but the larynx itself may be well lighted up; but inasmuch as this illumination may be accomplished, under favorable circumstances, by direct sunlight, the head-mirror is, though mostly indispensable, not an absolutely essential part of the laryngoscope.
So far as the actions of the laryngeal muscles are concerned, no difference can be defined between the correct vocal action and any improper mode of operation. Sir Morell Mackenzie examined a large number of people with the aid of the laryngoscope; of these, some were trained singers, others, while possessed of good natural voices, had had no vocal training whatever.
In a long, upright case, like that of an old hall-clock, was the anatomy of one who had long done with time; a laryngoscope and some other professional apparatus of constant utility lay upon the leaf of the doctor's desk.
Living to-day in London at the advanced age of ninety-seven is the elder brother of Malibran and Viardot-Garcia, Manuel Garcia, the inventor of the laryngoscope, author of the renowned "Art of Song," and teacher of Jenny Lind.
Auto-laryngoscopy, or the use of the laryngoscope by the subject to observe his own larynx, has its special difficulties and advantages, the greatest of the latter being, perhaps, that the observer may use himself as often and as long as he will, while he would hesitate to make observations on others at great length or with frequent repetition.
In March he visited Heligoland, inspected the progress of some alterations at the Royal Opera in Berlin, and sent the Gold Medal for Science to Manuel Garcia, on the occasion of the latter's hundredth birthday, as recognition of his invention of the laryngoscope, or mirror for examining the throat.
It was astonishing to see what a little experience of miscellaneous practice had done for him. He did not ask me anymore questions about my hereditary predispositions on the paternal and maternal sides. He did not examine me with the stethoscope or the laryngoscope.
By discovering with the aid of the laryngoscope the physiological defect and removing it, body, and, with it, mind and voice are restored to their proper condition. But if the singer goes back to a teacher whose method is wrong, the same impairment, or even worse, will result.
Is voice teaching any more accurate now than it was a hundred years ago? Did the invention of the laryngoscope add anything of value to the voice teacher's equipment? No. Even the inventor of it said that all it did was to confirm what he had always believed. An enlarged mechanical knowledge has availed nothing in the studio.
The laryngoscope was invented in 1854 by a teacher of singing, Manuel Garcia, who soon after gave an account of it to the Royal Society of England. The instrument consists essentially of two mirrors, the external, or "head-mirror," which is concave and reflects into the larynx, and the internal, or "mouth-mirror," which reflects the picture outward to the eye.
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