Contemporary specimens of compositions, accompanied by explanatory or supplementary letters by the authors themselves, describing their methods, habits of writing, revisions, etc. cf. Pref
The progressive higher arithmetic : for schools, academies, and mercantile colleges ; forming a complete treatise on arithmetical science, and its commercial and business applications
Standard up-to-date practical letter writer : a comprehensive and practical guide to correspondence, showing the structure, composition, formalities and uses of the various kinds of letters, notes and cards