Model of sodium atom, c 1911

1911-1926

Electron diffraction camera, 1925.

1925

Model of hydrogen atom, c 1911

1911-1926

Back wound betatron magnet by British Thomson-Houston Co. Ltd., 1947

1947

Model of helium atom, c 1911

1911-1926

Gaede 3-stage metal diffusion pump

1915-1927

Model of sodium chloride crystal, c 1912

1912-1926

Model of lithium atom, c 1911

1911-1926