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2 items
Frau Ernestine Bredig
- After 1847 – before 1930
Seated black and white portrait of Frau Ernestine Bredig (1847-1930). Little is known about Bredig as an individual, except that she was the mother of physical chemist Georg Bredig (1868-1944).
- Subject Bredig, Ernestine, 1847-1930, Portraits
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2 items
Series table with interrupted short periods
- 1869 (Original design)
- Circa 1957 (Date attributed to slide)
Graphic representation of the periodic table of chemical elements by Dmitri Mendeleev with additions by Edward G. Mazurs. Mendeleev originated this series table with interrupted short periods in 1869 and Mazurs…