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Subject
- Booth, James Curtis, 1810-1888358
- Mint of the United States170
- United States Mint170
- Morfit, Campbell, 1820-189791
- United States. Department of the Treasury56
- United States. Assay Office, New York City48
- Guthrie, James, 1792-186944
- Chemists41
- Chemistry teachers39
- Metals--Refining32
- Precious metals29
- Chemical elements26
- Metals26
- Semimetals26
- Mineralogy25
- Precious stones25
- Science--Study and teaching22
- Assaying16
- Chemistry15
- Youmans, Edward Livingston, 1821-188715