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- Author(s):
- Leffmann, Henry, 1847-1930 author
- Publication:
- Philadelphia : Published by the Society, [1888?]
- Subject(s):
- Food Contamination -- legislation & jurisprudence
Food Inspection -- legislation & jurisprudence
United States
- Author(s):
- Leffmann, Henry, 1847-1930 author
- Publication:
- [Philadelphia?] : [publisher not identified], [1893?]
- Subject(s):
- Water Supply
Sanitary Engineering
Philadelphia
- Author(s):
- Leffmann, Henry, 1847-1930 author
Beam, William, author
- Publication:
- [Philadelphia?] : [publisher not identified], [1892?]
- Subject(s):
- Cod Liver Oil -- analysis
Emulsions -- analysis
- Author(s):
- Leffmann, Henry, 1847-1930 author
- Publication:
- [New York?] : [publisher not identified], [1895?]
- Subject(s):
- Hydrogen Peroxide -- analysis
Pharmaceutical Solutions -- analysis
- Author(s):
- Leffmann, Henry, 1847-1930 author
- Publication:
- [Philadelphia?] : [publisher not identified], [1895?]
- Subject(s):
- Water Supply
Water Purification -- methods
- Author(s):
- Leffmann, Henry, 1847-1930 author
- Publication:
- New York : Alliance Press, [1894?]
- Subject(s):
- Food Coloring Agents
Food Preservatives