Research Balloons: Exploring Hidden Worlds by Briggs. Carole S.,

Hardback book with colour pictorial dust jacket, 64 pages illustrated with colour and B/W plates, 8 chapters, glossary index.

This book describes the exploration of the air at higher altitudes, its speed, direction, pressure, the ozone layer and the cosmos.

We learn about the people who were curious about it and the balloons which took them up there.