Rare Books

An explanation of the magnetic atlas, or variation chart, hereunto annexed : projected on a plan entirely new, by which the magnetic variation on any part of the globe may be precisely determined for any time past, present, or future : and the variation and latitude being accurately known, the longitude is of consequence truly determined

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Type: Rare Books(Opens in new tab)
Publication date: 1790.
Call number: 490876
Creator: Churchman, John (1753-1805)(Opens in new tab)
Dimensions: 22 cm (8vo)
Associated people: Churchman, John, (1753-1805.)
Find out more: View in the Library catalog(Opens in new tab)

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The magnetic atlas, or Variation charts of the whole terraqueous globe ; comprising a system of the variation and dip of the needle, by which the observations being truly made, the longitude may be ascertained

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Manual of the sextant : containing instructions for its use in determining time, latitude, longitude, and the variation of the compass

The theory and practice of finding the longitude at sea or land : to which are added, various methods of determining the latitude of a place, and variation of the compass : with new tables