He was supposed to possess a double epiglottis.
Roe describes a young lady who could whistle at will with the
lower part of her throat and without the aid of her lips.
Laryngeal examination showed that the fundamental tones were
produced by vibrations of the edges of the vocal cords, and the
modifications were effected by a minute adjustment of the
ventricular bands, which regulated the laryngeal opening above
the cord, and pressing firmly down closed the ventricle and acted
as a damper preventing the vibrations of the cords except in
their middle third. Morgan in the same journal mentions the case
of a boy of nineteen, who seemed to be affected with laryngeal
catarrh, and who exhibited distinct diphthongia. He was seen to
have two glottic orifices with associate bands. The treatment was
directed to the catarrh and consequent paresis of the posterior
bands, and he soon lost his evidences of double voice.
{footnote} The following is a description of the laryngeal
formation of a singer who has recently acquired considerable
notice by her ability to sing notes of the highest tones and to
display the greatest compass of voice. It is extracted from a
Cleveland, Ohio, newspaper: "She has unusual development of the
larynx, which enables her to throw into vibration and with
different degrees of rapidity the entire length of the vocal
cords or only a part thereof.
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