Discussion of magnetic and meteorological observations made at the Girard College Observatory, Philadelphia, in 1840, 1841, 1842, 1843, 1844, and 1845: [Sect. 3,] Part 7/9 Vertical force : investigation of the eleven (or ten) year period and of the disturbances of the vertical component of the magnetic force, and appendix on the magnetic effect of the aurora borealis ; with an investigation of the solar diurnal variation, and of the annual inequality of the vertical force, and of the lunar effect on the vertical force, the inclination, and total forcee
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Bibliographic Details
Main Author: Bache, Alexander D. 1806-1867 (Author)
Format: Book
Language:English
Published: Washington Smithsonian Inst. 1865
Series:Smithsonian contributions to knowledge 14,2
Physical Description:70 S. graph. Darst.

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