. . . "Describes why J. Sterling Morton established Arbor Day and briefly tells about its celebration across the U.S." . "This book introduces Arbor Day, a day that is observed at different times in different states by the planting of trees."@en . "Arbor Day" . "Arbor Day"@en . . . . "Juvenile works" . . "Juvenile works"@en . . "Arbor day" . . . . . . . . . "Describes the history behind Arbor Day and explains why it is so important that we celebrate it." .