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/ 15
9 lantern slides of diffraction patterns, atomic structure, spectra.

9 lantern slides of diffraction patterns, atomic structure, spectra.

Jefferson Physical Laboratory, Harvard University
1925-1940
100g of yttrium dust in sealed glass tube

100g of yttrium dust in sealed glass tube

Percy Williams Bridgman
circa 1925
Acme mounted rectifier, oscillator, and vacuum tube for teaching

Acme mounted rectifier, oscillator, and vacuum tube for teaching

ACME Apparatus Company
circa 1920
Ader "bull ring" receiver

Ader "bull ring" receiver

Louis-Clément Breguet
circa 1881
Ader "bull ring" receiver

Ader "bull ring" receiver

Louis-Clément Breguet
circa 1881
aluminum alloy samples in sealed glass jar

aluminum alloy samples in sealed glass jar

Aluminum Company of America
circa 1925
argentite sample in sealed glass tube

argentite sample in sealed glass tube

Percy Williams Bridgman
dated 1924
argon isotope separation apparatus

argon isotope separation apparatus

Kenneth T. Bainbridge
1939-1940
argon isotope separation apparatus?

argon isotope separation apparatus?

Kenneth T. Bainbridge
1939-1940
argon isotope separation apparatus

argon isotope separation apparatus

Kenneth T. Bainbridge
1939-1940
argon isotope separation apparatus

argon isotope separation apparatus

Kenneth T. Bainbridge
1939-1940
artifical azobenzene crystals in sealed glass jar

artifical azobenzene crystals in sealed glass jar

Percy Williams Bridgman
circa 1925
/ 15

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