S
- Slavery--Cuba. (1)
- Slavery--Puerto Rico. (2)
- Sovereignty. (1)
- Spain--Colonies--Administration. (2)
- Spain--Colonies--America. (1)
- Spain--Politics and government--1868-1875. (2)
- Spain--Politics and government--1875-1885 (1)
- Spain--Politics and government--1885-1931. (1)
- Spanish-American War, 1898--Personal narratives. (1)
- Spanish-American War, 1898--Puerto Rico. (1)
- Spanish-American War, 1898--Regimental histories. (1)
- Sugarcane industry--Puerto Rico. (1)