Great inventions
By: by Charles Greeley Abbot.
Series: Smithsonian scientific series -- v. 12
Publisher: Smithsonian Institution Series
Published: 1938
Place of publication: [New York
Language: eng
Number of pages: 383
Subjects: Inventions
Notes: "Primitive inventions ... have already been covered in volume 7 of this series ... My purpose was rather to select and explain the operation in their simpler forms of a few inventions, conceived mainly in the nineteenth and twentieth centuries."--Pref