h, and Script.

As to SIZE letters are both capital and lower case.

#[Third Month.]#

VOWELS.

A VOWEL sound is a free and uninterrupted sound of the voice. The
vowel sounds are formed by the voice modified, but not interrupted, by
the various positions of the tongue and lips.

A CONSONANT sound is an articulate sound made by the obstructed voice,
and which in utterance is usually combined with a vowel sound.

There is no absolute division between vowels and consonants. Certain
vowels are so open as to be only vowels, certain consonants are so
close as to be only consonants; but there are yet others which have
the value now of vowels and now of consonants; as, _i_, _u_, _w_, and
_y_.

"_Y_ as a vowel is a substitute for _i_, and _i_ is a consonant as a
substitute for _y_. _W_ and _y_ are vowels: (1) When they end words or
syllables, (2) when they are not followed by a vowel in the same
syllable, (3) when they are followed by a silent vowel in the same
syllable. _W_ and _y_ are consonants when they begin words or
syllables and are immediately followed by a vowel. _I_ is a consonant
when it represents the consonant _y_, as in _alien_. _U_ is a
consonant when it represents the consonant _w_, as in _quick_,
_language_."--_Irish's Orthography._

A DIPHTHONG is produced by running together two vowel sounds in the
same syllable.

A diphthong is PROPER if both the vowels are sounded; as _o_ and _i_
in _boil_.

An IMPROPER DIPHTHONG or DIGRAPH is merely a collection of two vowels
in the same syllable, of which only one is sounded; as in _rain_,
_teach_.

The diphthongs in the following words are all that are in common use,
viz.: t_oi_l, t_oy_, s_ou_nd, c_ow_, p_ea_l, _oi_l, _au_dible,
_aw_ning, s_ay_, s_ei_ne, p_eo_ple, f_eu_d, ob_ey_, esch_ew_,
bel_ie_ve, l_oa_n, h_oe_, h_ue_, j_ui_ce. Of these _oi_, _oy_, _ou_,
and _ow_ are the only _proper_ diphthongs.

A TRIPHTHONG is produced by running together three vowel sounds in the
same syllable.

A triphthong is PROPER if all three of the vowels are sounded. (But
there are no proper triphthongs that I know of.)

A triphthong is IMPROPER or is called a TRIGRAPH if one or two of the
three vowels is silent; as in ad_ieu_, b_eau_ty.

#[Fourth Month.]#

CONSONANTS.

CONSONANTS are divided on three different bases; as follows:

I. MUTES and SEMIV