Subject
- Sexism2
- Sherman, John, 1823-19001
- Shorthand2
- Silver9
- Silver ingots3
- Silver--Assaying6
- Silver--Refining13
- Smelting18
- Smith, J. Jay (John Jay), 1798-18811
- Smith, J. Lawrence (John Lawrence), 1818-18831
- Smith, Lloyd P. (Lloyd Pearsall), 1822-18861
- Smithsonian Institution3
- Snowden, Archibald Loudon, 1835-191222
- Snowden, James Ross, 1809-187810
- Societies9
- Spackman, H. E.1
- Spotting (Cleaning)1
- Spruance, William C. (William Corbit), 1873-19351
- Steam, High-pressure1
- Steamboats4