Many teachers and singers have now reached what they consider a demonstrated conclusion that registers are not a natural feature of the voice; yet a large contingent still adhere to the doctrine of "register," depending for their justification upon the unreliable evidence furnished by the laryngoscope, not realizing that there will be found in the little lens as many different conditions as the observers have eyes to see.
"Resonance in Singing and Speaking"
Thomas Fillebrown
Garcia himself, the inventor of the laryngoscope, soon modified his first claims as to its value in vocal culture.
"Resonance in Singing and Speaking"
Thomas Fillebrown
In this corner stands a flat writing-table, on which are a phonograph, a laryngoscope, a row of tiny organ pipes with a bellows, a set of lamp chimneys for singing flames with burners attached to a gas plug in the wall by an indiarubber tube, several tuning-forks of different sizes, a life-size image of half a human head, showing in section the vocal organs, and a box containing a supply of wax cylinders for the phonograph.
"Pygmalion"
George Bernard Shaw