Dry and Wet bulb thermometers. On Brass stand

Made:: 1876 in Bonn

maker:: Heinrich Geissler

Dry and Wet bulb thermometers. On Brass stand, by Geissler, 1876.

Details

Category:: Meteorology

Object Number:: 1876-761

Materials:: brass, glass and mercury

Measurements:: overall height and width: 47 x 10 cm

type:: wet and dry bulb psychrometer

credit:: Geissler, Heinrich

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Parts

Wet bulb thermometer

Wet bulb thermometer by Geissler. The thermometer bulb is wrapped with a piece of muslin. The thermometer could measure adiabatic saturation temperature when the muslin was wet.