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"A Rain Gauge is an instrument or contrivance for measuring the amount of rain which falls on a given surface."—(Charles Leonard-Stuart, 1911)

Rain Gauge

"A Rain Gauge is an instrument or contrivance for measuring the amount of rain which falls on a given…

"Instrument for measuring the depth of rainfall at any one time." -Foster, 1921

Rain Gauge

"Instrument for measuring the depth of rainfall at any one time." -Foster, 1921

"Rain gauges are usually vertically placed sheet-metal hollow cylinders of from 5 to 8 inches in diameter. (The figure) shows a rain gauge with a funnel-shaped mouth, A, and an inside receiver, C, of less diameter than the outer cylinder." -Waldo, 1896

Rain Gauge

"Rain gauges are usually vertically placed sheet-metal hollow cylinders of from 5 to 8 inches in diameter.…

An instrument for measuring the quantity of rain that falls at any given place in a given time.

Rain-gauge

An instrument for measuring the quantity of rain that falls at any given place in a given time.