_I_ is used to express different simple sounds, as in the words Indolence, Iron, and Imitation. In the Vocabulary it is never used as in the first case, but in the middle of words; it is never used as in the second example, for that sound is always represented by _y_, nor is it used as in the last case, that sound being always represented by two _e_'s, printed in Italics in this manner, _ee_.
_O_ never alters in the pronunciation, i.e. in this Vocabulary, of a simple sound, but is often used in this manner, _oo_, and sounds as in Good, Stood, &c.
_U_ alters, or is used to express different simple sounds, as in Unity, or Umbrage. Here the letters _e_ and _u_, printed in Italics _eu_ are used to express its power as in the first example, and it always retains the second power, wherever it is met with.
_Y_ is used to express different sounds, as in My, By, &c. &c. and in Daily, Fairly, &c. Wherever it is met with in the middle, or end, (i.e. anywhere but at the beginning,) of a word, it is to be used as in the first example; but is never to be found as in the second, for that sound, or power, is always represented by the Italic letter _e_. It has also a third power, as in the words Yes, Yell, &c., which is retained every where in the Vocabulary, at least in the beginning of words, or when it goes before another vowel, unless directed to be sounded separately by a mark over it, as thus, ÿ a.
Unless in a few instances, these powers of the vowels are used throughout the Vocabulary; but, to make the pronunciation still less liable to change, or variation, a few marks are added to the words, as follows:--
This mark ¨ as öa, means that these letters are to be expressed singly.
The letters in Italic, as _ee_, or _oo_, make but one simple sound.
When a particular stress is laid on any part of a word in the pronunciation, an accent is placed over that letter where it begins, or rather between that and the preceding one.
It often happens that a word is compounded as it were of two, or in some cases the same word, or syllable, is repeated. In these circumstances, a comma is placed under them at this division, where a rest, or small space, of time is left before you proceed to pronounce the other part, but it must not be imagined that this is a full stop.