Smithsonian Scientific Series Volume Twelve of the Series
New York, NY, Smithsonian Institute, 1934, 1st Edition, Hard Cover, no Dust Jacket, Size=6.5"x9.5", 383pp(Index), illus: 123 Photo Plates/61 Text Ill, Condition: VG no Dust Jacket, 1" long thin black line across top page ends, foxing at top & fore-edge margins of some pages,o.w. clean, tight & bright. NO ink names, bookplates, DJ tears etc. Pages unopened. Subjects: Inventions; Electricity; Motors; X Rays; Radio Transmissions; Farm Inventions; Household Invention; (Book No. 113956).
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