Subjects
- Machinery.1
- Manufacturing.1
- Masonry.1
- Men.1
- Merchants--United States--1880-1890.1
- Metallurgical industry.1
- Metalwork.1
- Military facilities--United States--1890-1900.1
- Military officers.1
- Militias--United States--1890-1900.1
- Mineral industries.1
- Mines.1
- Mining machinery.1
- Mining--Michigan.1
- Mining--United States.1
- Mining.1
- Missions--Syria--19th century.1
- Money.1
- Mountain railroads.1
- Naval yards & naval stations.1