Hydrometer Small 272×320 Medium 544×640 Large 871×1024 Download Tiff Original 2041×2400 | (1.1 MB) Description "The Fahrenheit hydrometer of constant volume is made of glass, the bulb at the bottom being loaded with mercury or shot." — Avery, 1895 Keywords density, fahrenheit, hydrometer, measure weight Galleries Chemistry Apparatus Source: Elroy M. Avery School Physics (New York: Sheldon and Company, 1895) 171
