The other kind of Consonants are explosive; which, viz. are discharged at one push, and as it were, in the twinkling of an Eye and are nothing else but Breath, which being got close together, either in the fore, middle, or hinder Region of the Mouth, is discharged on a suddain; and (k) is indeed formed in the hinder Region, when the hinder part of the Tongue is moved to the Roof, that the Breath cannot break forth, neither by the Mouth, nor by the Nose, but is suddenly let loose again: For thus the imprisoned Breath breaks out, and by breaking out, maketh k. c. or q. which in Germany are all the same Letter; in the middle Region are d. and t. formed, when, viz. the Breath, by help of the Tongues being moved to the Teeth, or Roof, and suddainly drawn back again, being more or less compressed, rusheth out by its own Springiness, and so d. or t. is made, which only differs, as b. and p. according to the more or less; in the outermost Region of the Mouth are formed, (b) and (p) when, viz. the Breath being compressed in the whole Cavity of the Mouth, they get out through the Lips opened.
Lastly; here follows those Consonants, which are compounded of Hissing and Explosion, such are (x) or ks. and (z) or ts. which only are the alone anomalous or irregular ones of the German Language; for if I may speak what I think; we might well enough want these Characters; yet I disapprove not of the use of them, but only shew what might be more convenient, viz. that Voice or Breath which is simple, might be expressed also by a simple Character, and on the contrary, that a Character, which is simple and only one, would signifie but one only Voice or Breath: But if the commodious use of Short-hand may be objected, I would perswade to express all possible Combinations, of Vowels, with Semi-vowels, and Consonants, by simple Characters.
This is what I determined to say concerning the Letters, and their Formation; and seeing I am not willing to write a Grammar, what might yet further be said of them, I pass by; but what I have performed, I leave it to others to judge thereof, not so much to teach them, as by what is here presented to excite them, being desirous, as it becomes a young Man, to learn of them: I hope they will pardon my Errors, because of my Youth. Yet certain I am, had the ancient Hebrews, Greeks and Romans, thus describ’d their Letters, there would have been no contention about the manner of Pronounciation.
Teacheth the Method its self, by which such as are Deaf, and consequently Dumb, may learn to Speak.