John Hudson Tiner

An introduction to the history of trucks and to various kinds of trucks of the past, present, and future.

An introduction to the history of flight and to specific airplanes of the past, present, and future.

Presents information on the scientific principle of gravity, how it was discovered, and how knowledge of its effects is applied by astronomers. Includes directions for a simple experiment.

Follows the life and career of the French scientist who proved the existence of germs and their connection with diseases.

An introduction to the history of automobiles and to various vehicles of the past, present, and future.