Ewing, T. (1836). Principles of elocution: Containing numerous rules, observations, and exercises, on pronunciation, pauses, inflections, accent, and emphasis; also copious extracts in prose and poetry, calculated to assist the teacher, and to improve the pupil, in reading and recitation (20th ed.). Oliver & Boyd.

Ewing, Thomas. Principles of Elocution: Containing Numerous Rules, Observations, and Exercises, on Pronunciation, Pauses, Inflections, Accent, and Emphasis; Also Copious Extracts in Prose and Poetry, Calculated to Assist the Teacher, and to Improve the Pupil, in Reading and Recitation. 20th ed. Oliver & Boyd, 1836.