Creator
- Rieder, Hermann1
- Rockwell, Mary1
- Rohm and Haas Company3
- Rohm and Haas Company. Resins Department2
- Rorer, S. T., 1849-19371
- Roscoe, Henry E. (Henry Enfield), 1833-19152
- Roy G. Neville Historical Chemical Library1
- Royster, P. H. (Percy Hoke), 1888-19661
- Rubber Growers' Association1
- Rumford Chemical Works3
- Rumford Company1
- Runge, F. F. (Friedlieb Ferdinand), 1795-18671
- Russell Brothers1
- Russell, Alexander S. (Alexander Smith), b. 18881
- S. W. Partridge & Co.1
- Sabin, Alvah Horton, 1851-19401
- Saint Catherine Press (London, England)1
- Salter, Lawrence C.1
- Schellen, Heinrich, 1818-18841
- Schenberg, Samuel1