The Great Plains

First printing is identified by the first-issue typographical error "poo" for "poor" in the Chapter II summary on page 10 — the point cited by the standard Americana bibliographies, and independently corroborated by an ABAA dealer who describes later printings within the first edition as being "with type correction." Ginn also printed a house code that separates the printings; first printings are recorded with the code 631.7, but sources disagree on its placement (one dealer cites the copyright page, another the title leaf), so read the page-10 typo first and treat the code as a cross-check only