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" ... remarkable fact which has been established, that the magnetic force is greater in both the northern and southern hemispheres in the months of December, January, and February, when the sun is nearest to the earth, than in those of May, June, and July,... "
Kosmos: Entwurf Einer Physischen Weltbeschreibung - Pagina 175
di Alexander von Humboldt - 1858
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Cosmos, essai d'une description physique du monde; tr. par H. Faye (C. Galusky).

Friedrich Wilhelm H. Alexander Humboldt (freiherr von.) - 1859
...soutbern hémisphères, in thé months of December, January and February, when Uie Sun is nearest to thé Earth, than in those of May, June and July, when he is most distant from it : whereas, if thé effects were due to température, thé two hémisphères should be oppositely instead of similarly...
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... Cosmos: Essai d'une description physique du monde

Alexander von Humboldt - 1859
...hémisphères, in thé inonths of December, January and February, wlien thé Sun is nearest to thé Earth, than in those of May, June and July, when he is most distant from it : whereas, if thé eflects were due to température, thé two hémisphères should be ôpposilely instcad of similarly...
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Photographic News for Amateur Photographers, Volumi 3-4

George Wharton Simpson, Sir William Crookes - 1860
...wrote in 185ÎÎ, " It is a remarkable fact that the magnetic force is greater in both the northern aud southern hemispheres in the months of December, January,...June, and July, when he is most distant from it." He has likewise shown that these magnetic effects of the sun cannot possibly be attributed to any changes...
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Kosmos: Entwurf einer physischen Weltbeschreibung. Mit einer ..., Volume 4

Alexander von Humboldt, Bernhard von Cotta - 1874
...UJerfammlung ju SBelfaft (Meeting of the British Assoc. in 1852) lieifjt tä : „it is a remarkable fact, -which has been established , that the magnetic force...is most distant from it: whereas , if the effects where due to temperature, the two hemispheres should be oppositely instead of similarly affected in...
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On Periodical Change of Terrestrial Magnetism

Fritz W. Schulze - 1879 - 62 pagine
...which has been estab" lished, that the magnetic force is greater in both hemispheres "in the month of December, January and February, when the " sun...due to temperature, the two hemispheres should be op" positely instead of similarly effected in each of the two pe"riods referred to. From page 82 the...
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The American Journal of Science and Arts

1852
...solstitial epochs, appears to favor the hypothesis of a direct action ; as does also the remarkable fact which has been established, that the magnetic force...July, when he is most distant from it : whereas if the effect were due to temperature, the two hemispheres should be oppositely instead of similarly affected...
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