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.

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Bibliographic Details
Author / Creator:Foster, Samuel, -1652.
Imprint:London : printed by Robert & William Leybourn, for Nicholas Bourn, at the South entrance into the Royall Exchange, 1654.
Description:1 online resource ([8], 80, [2] p. :) ill.
Subject:Astronomy -- Early works to 1800.
Nautical astronomy -- Early works to 1800.
Navigation -- Instruments -- Early works to 1800.
Nautical astronomy.
Navigation -- Instruments.
Early works.
Format: E-Resource Book
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Notes:With final page of errata.
Reproduction of the original in the British Library.
Wing (2nd ed.) F1635A.