CSP notes his forty years' study of the general subject and his first paper in the field written in collaboration with John B. Noyes and published in North American Review, April 1864, under the title "Shakespearian Pronunciation" (G-1864-1). Phonetics and the system of spelling. Rules for determining spelling by the sound of the vowels, with exceptions noted. Rules for doubling of consonants, with examples and exceptions to the rules.
rules for doubling Consonants, Language, Linguistics, Noyes John B., Phonetics, Spelling, Vowels
pp. 1-64, with 72 pp. of variants and worksheets