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Subject
- Bredig, Georg, 1868-194451
- Chemistry45
- Scientific apparatus and instruments34
- Chemical industry33
- Corporations33
- Chemists30
- Dearborn Chemical Company30
- Science--Study and teaching29
- Laboratories28
- Textbooks28
- Postcards27
- Illustrated works26
- Water purification chemicals industry26
- Aeronautics25
- Ballooning16
- Nobel Prize winners16
- Employees15
- Glassware15
- Dyes and dyeing14
- Arrhenius, Svante, 1859-192713