Posthuma Fosteri the description of a ruler, upon which is inscribed divers scales: and the uses thereof: invented and written by Mr. Samuel Foster, late professor of astronomie in Gresham-Colledg. By which the most usual propositions in astronomy, navigation, and dialling, are facily performed. Also, a further use of the said scales in deliniating of far declining dials; and of those that decline and recline, three severall wayes. With the deliniating of all horizontall dials, between 30 and 60 gr. of latitude, without drawing any lines but the houres themselves.
About this Item
Title
Posthuma Fosteri the description of a ruler, upon which is inscribed divers scales: and the uses thereof: invented and written by Mr. Samuel Foster, late professor of astronomie in Gresham-Colledg. By which the most usual propositions in astronomy, navigation, and dialling, are facily performed. Also, a further use of the said scales in deliniating of far declining dials; and of those that decline and recline, three severall wayes. With the deliniating of all horizontall dials, between 30 and 60 gr. of latitude, without drawing any lines but the houres themselves.
Author
Foster, Samuel, d. 1652.
Publication
London :: printed by Robert & William Leybourn, for Nicholas Bourn, at the South entrance into the Royall Exchange,
1654.
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Subject terms
Astronomy -- Early works to 1800.
Nautical astronomy -- Early works to 1800.
Navigation -- Instruments -- Early works to 1800.
Link to this Item
http://name.umdl.umich.edu/A40034.0001.001
Cite this Item
"Posthuma Fosteri the description of a ruler, upon which is inscribed divers scales: and the uses thereof: invented and written by Mr. Samuel Foster, late professor of astronomie in Gresham-Colledg. By which the most usual propositions in astronomy, navigation, and dialling, are facily performed. Also, a further use of the said scales in deliniating of far declining dials; and of those that decline and recline, three severall wayes. With the deliniating of all horizontall dials, between 30 and 60 gr. of latitude, without drawing any lines but the houres themselves." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A40034.0001.001. University of Michigan Library Digital Collections. Accessed June 13, 2025.
Pages
descriptionPage 80
Note in all these three wayes of
Dialling.
All directions here given suppose you to be in the
Northern Hemisphere of the world. If therefore
you should be in the Southern Hemisphere,
you may easily make these precepts serve
there too, by only altering the name
of North, Northen, &c. and
South Southern, &c.
one into the
other.
FINIS.
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