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Title: Whirling psychrometer, by Negretti & Zambra, thermometer mar [Go to resource]
Description: Whirling psychrometer, by Negretti & Zambra, thermometer marked EB2578, dated [1920 to 1940]. Wet and dry bulb fahrenheit mercury-in-glass thermometers, with instructions for use on reverse of frame License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: psychrometer Temporal: 1920-1940 Source: Science Museum Creator: Negretti and Zambra (maker) Identifier: 1995-931 Go to resource More Like this...-
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