r of
their production. As suppose one character was to express the
antesonance of B, D, Ga; another the orisonance of R, L; another the
sibilance of W, S, Sh, H; another the sonisibilance of W, Z, J French,
Ch Spanish; another to express the more open vowels; another the less
open vowels; for which the word micron is here used, and for which the
word mega is here used.

Then the following characters only might be necessary to express them
all; P alone, or with antesonance B; with narisonance M; with
sibilance W German; with sonisibilance W; with vocality, termed micron
OO; with vocality, termed mega O.

T alone, or with the above characters added to it, would in the same
manner suggest D, N, S, Z, EE, Y, and R with a mark for orisonance.

K alone, or with the additional characters, would suggest Ga, NG, Sh,
J French, A, E, and L, with a mark for orisonance.

F alone, or with a mark for sonisibilance, V.

Th alone, or with a mark for sonisibilance, Th.

H alone, or with a mark for sonisibilance, Ch Spanish, and with a mark
for less open vocality, aw, with another for more open vocality ah.

Whence it appears that six single characters, for the letters P, T, K,
F, Th, H, with seven additional marks joined to them for antesonance,
narisonance, orisonance, sibilance, sonisibilance, less open vocality,
and more open vocality; being in all but thirteen characters, may
spell all the European languages.

I have found more difficulty in analyzing the vowels than the other
letters; as the apertures, through which they are modulated, do not
close; and it was therefore less easy to ascertain exactly, in what
part of the mouth they were modulated; but recollecting that those
parts of the mouth must be more ready to use for the purpose of
forming the vowels, which were in the habit of being exerted in
forming the other letters; I rolled up some tin foil into cylinders
about the size of my finger; and speaking the vowels separately
through them, found by the impressions made on them, in what part of
the mouth each of the vowels was formed with somewhat greater
accuracy, but not so as perfectly to satisfy myself.

The parts of the mouth appeared to me to be those in which the letters
P, I, K, and H, are produced; as those, where the letters F and Th are
formed, do not suit the production of mute or antesonant consonants;
as the interstices of the teeth would occasion some sibilance; and
these apertures are not adapted to the