Internet Archive books on English Orthography
Internet Archive has a number of books on spelling and orthography of English.
Internet Archive Search: spelling AND subject:"English language — Orthography and spelling"
English spelling and spelling reform - Lounsbury, Thomas Raynesford, 1838-1915
Includes indexes
Keywords: English language — Orthography and spelling; Spelling reform
Proposals for a simplified spelling of the English language - Rippmann, Walter, 1869-
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Keywords: Spelling reform
A defence of phonetic spelling : drawn from a history of the English alphabet and orthography, with a remedy for their defects - Latham, R. G. (Robert Gordon), 1812-1888
Includes bibliographical references
Keywords: Spelling reform; Phonetic spellingA tract on the present state of English pronunciation - Bridges, Robert, 1844-1930
Includes bibliographical references
Keywords: English language — Pronunciation; Spelling reform
The pronunciation of English reduced to rules by means of a system of marks applied to the ordinary spelling - Craigie, William A. (William Alexander), Sir, 1867-1957
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Keywords: English language — Pronunciation
Irish spelling; a lecture delivered under the title "Is Irish to be strangled?" as the inaugural address of the Society for the simplification of the spelling of Irish on the 15th of November, 1910 - Bergin, Osborn, 1873-1950
Keywords: Irish language — Orthography and spelling
Chambers’ primer, or, First book for children - Chambers, Reuben.
Keywords: Language and languages; Primers (Instructional books); Orthography and spelling; Publishers’ paper bindings (Binding); Textbooks; Juvenile literature
The spelling of English by Porto Rican pupils - St. John, Charles Webster
Keywords: English language — Orthography and spellingOrthography, orthoepy, and punctuation, embodying the essential facts of the English language, with concise rules for punctuation and the use of capital letters; a text-book and book of reference for schools, colleges, and private students - Winchell, Samuel Robertson, 18431926
The last one is particularly interesting as it does treat punctuations. In the preface he also mentioned some earlier work in punctuations that had since lost.
Here are a couple of non-English ones:
Origem, e orthographia da lingoa portugueza. Obra util, e necessaria, assim para bem escrever a linga portugueza, como a Latina, e quaesquer outras que da Latina tem origem: com hum tractado dos pontos das clausulas. Nova ed., corr. e emendada, conforme a de 1784 - Nunez do Lião, Duarte, d. 1608
26Observations sur l’orthographe ou ortografie française, suivies d’une historie de la réforme orthographique depuis le XVe siècle jusqu’à nos jours - Didot, Ambroise Firmin, 1790-1876
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Fortunately all these books are free of copyright and are available in Djvu.