Jack London's distinctive wolf bookplate mounted to front pastedown. First printing of London's first book. Identifiable by collation (per BAL) or by two more obvious issue points which have recently been identified: first issue has tipped-in frontispiece, later issues with frontispiece sewn in; first issue has comma after the year (1900) on copyright page, later issues have punctuation corrected with a period. BAL 11869; Sisson & Martens, p. 1.