Signedunsigned
Inscribedon scale: Für jeden Grad über 0 ist 1 Procent ab- / Für jeden Grad unter 0 ist 1 Procent zuzurechnen [German: For every degree above 0 substract 1 percent, for every degree below 0 add 1 percent]
FunctionThis is an instrument that functions both as a hydrometer and as a thermometer. One lets the hydrometer float on the liquid and then one takes a density reading at the height indicated by the liquid's surface. The mercury bulb will be submerged during its use so the thermometer indicates the liquid's temperature as well.
Historical AttributesThis instrument appears to have been to the Schlaginweit Expedition to Central Asia between 1854 and 1858.
ProvenanceAcquired with other instruments from the Schlaginweit Expedition in Germany, 1959 (Object 30).