Welsh's slide rule for Mass of air, made by Patric

Made:
1869-1885 in London
maker:
Adie, Patrick

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Welsh's slide rule for Mass of air, made by Patrick Adie, 15 Pall Mall, London, 1869-1885. Scale marked PRESSURE, GRAINS, TEMPERATURE, MASS OF DRY AIR SCALE. on one side, and on reverse MASS OF VAPOUR SCALE

Details

Category:
Meteorology
Object Number:
1995-907
type:
slide rule
credit:
Meteorological Office, Berkshire
status:
Permanent collection

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