In treating on the letters, I shall not, like some other grammarians, inquire into the original of their form, as an antiquarian; nor into their formation and prolation by the organs of speech, as a mechanick, anatomist, or physiologist; nor into the properties and gradation of sounds, or the elegance or harshness of particular combinations, as a writer of universal and transcendental grammar. I consider the English alphabet only as it is English; and even in this narrow disquisition I follow the example of former grammarians, perhaps with more reverence than judgment, because by writing in English I suppose my reader already acquainted with the English language, and consequently able to pronounce the letters of which I teach the pronunciation; and because of sounds in general it may be observed, that words are unable to describe them. An account, therefore, of the primitive and simple letters, is useless, almost alike to those who know their sound, and those who know it not.
OF VOWELS
A.
A has three sounds, the slender, open, and broad.
A slender is found in most words, as face, mane, and in words ending in ation, as creation, salvation, generation.
The a slender is the proper English a, called very justly by Erpenius, in his Arabick Grammar, a Anglicum cum e mistum, as having a middle sound between the open a and the e. The French have a similar sound in the word pais, and in their e masculine.
A open is the a of the Italian, or nearly resembles it; as father, rather, congratulate, fancy, glass.
A broad resembles the a of the German; as all, wall, call.
Many words pronounced with a broad were anciently written with au; as sault, mault; and we still say, fault, vault. This was probably the Saxon sound, for it is yet retained in the northern dialects, and in the rustick pronunciation; as maun for man, haund for hand.
The short a approaches to the a open, as grass.