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Balfour-Stewart experimental mercury thermometer

1856

Balfour-Stewart experimental mercury thermometer

1856
Fluctuation thermometer, experimental, Balfour-Stewart, uncalibrated, mercury in glass. Central bulb, with wide bore tube on one side, narrow on the other

Experimental fluctuation thermometer

Fluctuation thermometer, Balfour-Stewart, experimental, mercury in glass, uncalibrated. Central bulb with wide-bore tube on one side, narrow on the other

Fluctuation thermometer

Fluctuation thermometer, Balfour-Stewart, experimental, mercury in glass, uncalibrated. Central bulb with wide bore tube on one side, narrow on the other

Fluctuation thermometer

Fluctuation thermometer, Balfour-Stewart, experimental, mercury in glass, uncalibrated. Reservoir bulb supplying main tube, with side tube

Fluctuation thermometer

Three Balfour-Stewart experimental mercury thermometers, scales not divided.

three Balfour-Stewart experimental mercury thermometers

1856
One of three Balfour-Stewart experimental mercury thermometers, scales not divided.

Balfour Stewart experimental mercury thermometer

1856