Subject
- Paint industry and trade5
- Pharmaceutical industry5
- Plastics5
- Science History Institute5
- Scientists--Biography5
- Water--Purification5
- Agricultural chemicals4
- Baking powder4
- Chemistry--Experiments4
- Chlorination4
- Coal-tar products4
- Color4
- Comic books, strips, etc.4
- Cooking, American4
- Corporation reports4
- Davy, Humphry, Sir, 1778-18294
- Education, Secondary4
- Electricity4
- Electrochemistry4
- Food adulteration and inspection4