Dewpoint Humidostat controlled by a vortex tube cooling device, 1950 Dewpoint Humidostat controlled by a vortex tube cooling device
Set of four calorimeter vessels assorted; two with delivery tube (Sir James Dewar's research vacuum apparatus) Set of four calorimeter vessels
5 thermometers with no graduations for mounting on frames. 1. Alcohol thermometer with minimum index. Wellcome No. B925. 2. Mercury thermometer. Wellcome No. B920. 3. Mercury thermometer. Wellcome No. B927. 4. Mercury thermometer. Wellcome No. B926. 5. Mercury thermometer. Wellcome No. B930. Nos. 1-3 are backed with white enamel strips 5 thermometers with no graduations
Double-recording thread recorder; in case with winding key and 100 double-record charts Double-recording thread recorder
Standard platinum thermometer, "P1" used by Dewar and Fleming in their low temperature researches Standard platinum thermometer, "P1" used by Dewar and Fleming