Sentence Examples with the word photometer

Bailey, was accordingly despatched (1889), and the meridian photometer erected successively in three different positions on the slopes of the Andes.

The gas obtained by the Young process, when tested by itself in the burners most suited for its combustion, gives on the photometer an illuminating value averaging from 50 to 60 candle-power, but it is claimed, and quite correctly, that the enriching power of the gas is considerably greater.