Hydrometer
Illustrated Marine Encyclopedia · 1890 · p. 11
An instrument to test the gravity for the saltne of the water in the boiler. Marine Encyclopedia — I i
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A Dictionary of Scientific Terms (1927)
Adair's New Encyclopedia (1923)
The American Illustrated Medical Dictionary (1913)
A Law Dictionary (1910)
Chamber's Twientieth Century Dictionary (1908)
An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
The Student's Medical Dictionary (1896)
An Illustrated Encyclopedic Medical Dictionary (1893)
Nuttall's Standard Dictionary of the English Language (1890)
The Century Dictionary: The Encyelopedic Lexicon of the English Language (1887)
A Military Dictionary (1810)
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