Reference numberPP/3/3
Previous numbersPP/35/3
TitlePaper, 'Note on terrestrial radiation' by John Tyndall
DescriptionTyndall writes: 'On Hind Head, a fine moorland plateau about three miles from Haslemere [England], with an elevation of 900 feet above the sea, I have recently erected a small iron hut, which forms, not only a place of rest, but an extremely suitable station for meteorological observations. Here, since the beginning of last November, I have continued to record from time to time the temperature of the earth’s surface as compared with that of the air above the surface. My object was to apply, if possible, the results which my experiments had established regarding the action of aqueous vapour upon radiant heat. Two stout poles about 6 feet high were firmly fixed in the earth 8 feet asunder. From one pole to the other was stretched a string, from the centre of which the air thermometer was suspended. Its bulb was 4 feet above the earth. The surface thermometer was placed upon a layer of cotton wool, on a spot cleared of heather, which thickly covered the rest of the ground. The outlook from the thermometers was free and extensive; with the exception of the iron hut just referred to, there was no house near, the hut being about 50 yards distant from the thermometers.'

Annotations in pencil and ink.

Subject: Physics

Received 29 January 1883. Read 1 February 1883.

A version of this paper was published in volume 35 of the Proceedings of the Royal Society as 'Note on terrestrial radiation'.
Physical descriptionInk and graphite pencil on paper
Digital imagesView item on Science in the Making
Access statusOpen
Related materialDOI: 10.1098/rspl.1883.0005
Fellows associated with this archive
NA8293Tyndall; John (1820 - 1893); natural philosopher1820 - 1893
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