Journal of the Franklin Institute; devoted to science and the mechanic arts (1826)
Franklin Institute (Philadelphia, Pa.) · Oxford, Eng. [etc.] Pergamon Press [etc.] · leaf 369
or his pur-pose; but after long study, and a diligent examination of the organsof speech, he contrived a hollow oval box, divided into portions at-tached by a hinge so as to resemble jaws. This box received thesound which issued from the tube connected with the reed, and byopening and closing the… … consonants P, M, L, and by means ofthese vowels and consonants he couldcompose syllables and words, such asmamma, papa, aula, lama, mulo. Thesounds of two adjacent letters, however,ran into each other, and an aspirationfollowed some of the consonants, so thatinstead of papa the word sounded phaa-ph…
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