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Part of electrostatic telegraph, 1816

Part of electrostatic telegraph, 1816

1816
Ronalds' Photobarometrograph, 1847

Ronalds' Photobarometrograph, 1847

1847
Dry voltaic pile, 11.5 inches long

Dry voltaic pile, 11.5 inches long

1815
Straw electroscope (without straws)

Straw electroscope (without straws)

1850
Ronalds' rain and vapour gauge (evaporimeter) by Adie & Son

Ronalds' rain and vapour gauge (evaporimeter) by Adie & Son

1843
Components for Photobarograph

Components for Photobarograph

1867
Two bronze screws from the Portions of Ronalds' electrostatic telegraph

Two bronze screws from the Portions of Ronalds' electrostatic telegraph

1816-1894
Ronald's Electroscope, straw

Ronald's Electroscope, straw

1850
Ronald's Electroscope, gold leaf

Ronald's Electroscope, gold leaf

1850
Ronald's electrical apparatus for atmospheric observations, copper rod to go through roof to atmosphere

Ronald's electrical apparatus for atmospheric observations, copper rod to go through roof to atmosphere

1843
Portions of Ronalds' electrostatic telegraph, 1816

Portions of Ronalds' electrostatic telegraph, 1816

1816
Balance anemometer, 1843

Balance anemometer, 1843

1843
Photobarograph commissioned by the Meteorological Committee of the Royal Society, some design specifications attributed to Francis Ronalds, made in England, UK, 1867. Installed and operated at Radcliffe Observatory, Oxford.

Photobarograph used at Radcliffe Observatory, Oxford

1867
Components of photothermograph commissioned by the Meteorological Committee of the Royal Society, some design specifications attributed to Francis Ronalds, made in England, UK, 1867. Installed and operated at Radcliffe Observatory, Oxford.

Components of photothermograph used at Radcliffe Observatory, Oxford

1867
Ronald's electrical apparatus for atmospheric observations, 1843, ex-Kew Observatory

Ronald's electrical apparatus for atmospheric observations

1843
Photothermograph commissioned by the Meteorological Committee of the Royal Society, some design specifications attributed to Francis Ronalds, made in England, UK, 1867. Installed and operated at Radcliffe Observatory, Oxford.

Photothermograph used at Radcliffe Observatory, Oxford

1867