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George James Symons designed rain gauge, with bottle, pail and measuring cylinder, 1871

1871

Rain-gauge, by George James Symons, 1860-1899

1860-1899
George James Symons storm gauge, Britain, 1875.

George James Symons Storm Gauge, 1875

1875
George James Symons type earth thermometer, with iron tube, by Louis Paschal Casella, 1874

George James Symons type earth thermometer, by Casella, 1874

1874
Modified Symons earth thermometer, by Hicks, with iron tube.

George James Symons type thermometer,

1917