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- Author(s):
- Leffmann, Henry, 1847-1930, author
- Publication:
- Philadelphia : P. Blakiston, Son & Co., 1884
- Subject(s):
- Chemical Phenomena
- Author(s):
- Leffmann, Henry, 1847-1930, author
- Publication:
- Philadelphia : P. Blakiston, Son & Co., 1895
- Subject(s):
- Fresh Water -- analysis
- Author(s):
- Leffmann, Henry, 1847-1930, author
- Publication:
- Philadelphia : C.C. Roberts & Co., 1881
- Subject(s):
- Chemical Phenomena
- Author(s):
- Leffmann, Henry, 1847-1930, author
- Publication:
- Philadelphia : Edward Stern & Co., 1879
- Subject(s):
- Chemical Phenomena
- Author(s):
- Leffmann, Henry, 1847-1930, author
Beam, William, author
- Publication:
- Philadelphia : P. Blakiston, Son & Co., 1889
- Subject(s):
- Fresh Water -- analysis
- Author(s):
- Leffmann, Henry, 1847-1930, author
Beam, William, author
- Publication:
- Philadelphia : P. Blakiston, Son & Co., 1891
- Subject(s):
- Fresh Water -- analysis
- Author(s):
- Leffmann, Henry, 1847-1930, author
- Publication:
- Philadelphia : P. Blakiston's Son & Co., 1899
- Subject(s):
- Water -- analysis
- Author(s):
- Leffmann, Henry, 1847-1930, author
- Publication:
- [Philadelphia?] : [publisher not identified], [1883?]
- Subject(s):
- Hygiene
Ventilation
- Author(s):
- Leffmann, Henry, 1847-1930, author
- Publication:
- [Philadelphia?] : [publisher not identified], [1883?]
- Subject(s):
- Alcohol Drinking
Ethanol -- therapeutic use
Physician's Role
- Author(s):
- Leffmann, Henry, 1847-1930, author
- Publication:
- [Philadelphia] : [publisher not identified], [1886]
- Subject(s):
- Alcohols -- therapeutic use