501 balloons sail east
Subtitle: a story of a school-wide weather experiment.
By: Photos.  by Florence Harrison.
Contributors: Harrison, Florence, 1910- illus.
Publisher: Young Scott Books
Published: 1971
Place of publication: Reading, Mass
Language: eng
Number of pages: 48
Subjects: Winds -- Juvenile literature.; Balloons -- Juvenile literature.; Weather -- Juvenile literature.; Winds.; Weather.
Description: As a result of the fifth graders' study of the wind and weather, the entire school becomes involved in a project to launch 501 helium-filled balloons with self-addressed return postcards attached.