Books by Walter Renton Ingalls
Lead and zinc in the United States
Units of weights and measures
Units of weights and measures
Systems of weights and measure
Systems of weights and measures
Modern weights and measures
Modern weights and measures
The Ingalls family in England and America
Current economic affairs
Current economic affairs
Wealth and income of the American people
Lead smelting and refining
Notes on metallurgical mill construction
The Metallurgy of zinc and cadmium
Production and properties of zinc