Boy's second book of inventions
By: by Ray Stannard Baker.
Publisher: Doubleday, Page
Published: 1909
Place of publication: New York
Language: eng
Number of pages: 320
Subjects: Inventions -- History.; Technology -- History.
Description: Discusses the development of such inventions as the seismograph, solar motor, wireless telegraphy, steerable balloons, and the discovery and applications of radium.