ALCOHOLOMETRY.
Hydrometers in general. Proof spirit. Syke's hydrometer.
Gay-Lussac's hydrometer. Tralles alcoholometer. Hydrometric
methods. Estimation of alcohol. Field's alcoholometer. Grisler's
method and apparatus. Estimating sugar in mash. Determination of
alcoholic fruits. Physical tests. Chemical tests. The Permanganate
of Potash test. Results by Barbet. 174