Owens' deposition gauge, 1913.
4 0 c m
 
28cm
actual image size: 20cm x 32cm

Owens' deposition gauge, 1913.

© Science Museum / Science & Society Picture Library

Description

Semitone photograph taken from the 'Quarterly Journal of the Royal Meteorological Society', (1918). This deposition gauge was developed and used by Dr J S Owens for measuring air pollutants. The frame around the edge was to discourage birds from perching on the edge and influencing the readings.
 

Image Ref.

10326714
 

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