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Octavo, ok-tā′vō, adj. having eight leaves to the sheet.—n. a book printed on sheets folded into eight leaves, contracted 8vo—usually meaning a medium octavo, 6�9� inches.

George Sale's translation first appeared in November, 1734, in a quarto volume; in 1764 it was first printed in medium octavo, and the reprint of 1825 contained the sketch of Sale's life by Richard Alfred Davenant which has been utilized in the article on Sale in the Dictionary of National Bibliography.