The vocal organ, or A new art of teaching the English orthographie by observing the instruments of pronunciation, and the difference between words of like sound, whereby any outlandish, or meer English man, woman, or child, may speedily attain to the exact spelling, reading, writing, or pronouncing of any word in the English tongue, without the advantage of its fountains, the Greek, and Latine. Compiled by O.P. Master of Arts, and professor of the art of pedagogie - Price, Owen (printed by William Hall, for Amos Curteyne, 1665)
Madan, III, 2715. - O.P. = Owen Price. - Reproduction of the original at the Harvard University Library. - Wing (2nd ed.), P3396