If I gain their _Voice_, which for the most part I do at the first time, I soon learn them to pronounce _Vowels_, _viz._ I bid them so to moderate the _opening of their Mouth_, whilst they do form a _Voice_ in their _Throat_, as I have said above, concerning the Formation of the _Vowels_; but that they may do that the more easily, I hold a _Looking-Glass_ to them, because they cannot from Sight alone imitate those diverse Motions of the _Jaws_, of the _Tongue_, and of the _Lips_, unless they had oftentimes tried it before a Looking-Glass. Thence I learned, that that common belief, (that so soon as Hearing is restored to Deaf Persons, they will speak) to be false, for it seems not to me, that there is so great a consent betwixt the Organs of _Voice_, and of Hearing, that at the first blush they can imitate a _Voice_ that is heard; but by often imitating a _Voice_ or _Breath_ received from another, and also by hearing their own at the same time, we find at length a likeness between both, and after this manner we all learn to speak; for he who learns to speak, it is all one, as if he did learn some other Art; for by a long accustoming, the Organs are rendered apt and pliable: Hence it is, that sometimes we come not to pronounce aright Foreign Letters but after a long time. Now, it would be well observed or considered, that I presently prescribe all the Letters to Deaf Persons, or else they could not fix in their Minds their _Idea's_ of them, and I seldom teach more than two or three Letters in one day, least the _Idea's_ be confounded; but I bid them very often to repeat them, and to write them down as they are pronounced by me. But if by chance, as it sometimes happeneth, that they should pronounce one Letter for another; I blame them not, but rather commend them, and grant with a nodd that they have satisfied me, and forthwith I write down the Character of that Letter upon Paper, that they may knit together the _Idea_ thereof with its figure. In the interim, whilst they learn the _Vowels_, I very often put their Hand to my _Throat_, that they may be accustomed to give forth a Sound. When the _Vowels_ are become familiar to them, I go next to the _Semi-vowels_, which sometimes are more difficult, especially the _Nasals_; for Deaf Persons, unless they be taught, never give forth the _Voice_ by the _Nose_, thereupon I begin with [_m._] as that which is most plain, and easier learnt than the rest, so that they thereby may be accustomed to give a Sound at least thro' the _Nose_; therefore I bid them shut together their _Lips_, and putting their Hand to their _Throat_, to give forth a _Voice_, and by that means they necessarily pronounce [_m._] and not [_em._] as it's vulgarly pronounced.