Apparatus for Measuring Gas Concentration Pressure and Temperature Small 243×320 Medium 486×640 Large 778×1024 Download TIFF Original 1824×2400 | (504.5 KB) Description "For measuring the gas concentration, pressure and temperature, use may be made of an apparatus of the type shown [here]." —The Encyclopedia Britannica 1910 Keywords apparatus, concentration, gas, measure, pressure, temperature Galleries Chemistry Apparatus Source: Encyclopaedia Britannica (11th ed., vol. 16) (New York, NY: The Encyclopaedia Britannica Company, 1910)