An Attempt to Account for the Regular Diurnal Variation of the Horizontal Magnetic Needle; And Also for Its Irregular Variation at the Time of an Aurora Borealis: By John Canton, M. A. and F. R. S.
Автор: Canton, J., 48 стр., издатель: "Книга по Требованию", ISBN: 978-5-8819-7666-8



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