Abstract
IN the note in NATURE, vol. xxvii. p. 322, in which you refer to my telegrams from Sodankylä, there is a misunderstanding concerning the apparatus which I made use of in the experiments. This apparatus, which I call in Swedish “Utfrömningo-apparat” (streaming apparatus), was constructed of uncovered copper wire, provided at each half-metre with fine erected points. That wire was led in slings to the top of the hill, and reposed on the usual telegraph insulators. From one end of this wire was conducted a covered copper wire on insulators to the foot of the hill (600 feet high), and there joined a plate of zinc interred in thé earth. In this circuit was put a galvanometer.
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LEMSTRÖM, S. Auroral Experiments in Finland. Nature 27, 389 (1883). https://doi.org/10.1038/027389b0
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DOI: https://doi.org/10.1038/027389b0
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