Hopalong Cassidy Collection: 7 Western Novels

This collection includes 7 novels about the cowboy hero Hopalong Cassidy by American author Clarence Edward Mulford:
BAR-20
(Being a record of certain happenings that occurred in the otherwise peaceful life of one Hopalong Cassidy)
THE ORPHAN
THE COMING OF CASSIDY
BAR-20 DAYS
THE MAN FROM BAR-20
THE BAR-20 THREE
"BRING ME HIS EARS"