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Subjects
- Walsh, Joseph, 1870-1946.1
- Warfare11
- Warren, John Collins, 1778-1856.2
- Warren, John, 1753-1815.3
- Warren, Joseph, 1741-1775.1
- Washington (D.C.). Board of Health.1
- Washington Asylum Hospital (Washington, D.C.)1
- Washington, Bailey.1
- Washington, George, 1732-1799.1
- Water5
- Water -- analysis5
- Water Quality1
- Water Supply20
- Water Supply -- economics2
- Water Supply -- legislation & jurisprudence1
- Waterhouse, Benjamin, 1754-1846.1
- Watson, S. M. (Samuel M.)1
- Weather11
- Weights and Measures1
- Weights and Measures -- standards1