A neat old book.  Copyright started in 1941, but this edition is the 1952 EDITION.

Made for the California school system.

Stamped Department of Public Instruction, Glendale Unified School District, Wilson Junior High School, Los Angeles County, State of California, Sep 1956

6-1/4" wide x 8-5/8" tall

The first page explains how nobody has yet been to the moon, and no machine has traveled fast enough to escape the Earth.

Used, as-is.  Wear on covers, one folded page corner.  Title page ink stamped.  See attached pictures.