The manner of finding of the true sum of the infinite secants of an arch, by an infinite series
Subtitle: which being found and compared with the sum of the secants found, by adding of the secants of whole minutes ... do plainly demonstrate that Mr. Edward Wright's nautical planisphere is not a true projection of the sphere
By: by Richard Norris, mariner.
Series: Early English books, 1641-1700 -- 1748:45.
Publisher: Printed by Tho. James for the author
Published: 1685
Place of publication: London
Language: eng
Format: Microform
Number of pages: 12
Subjects: Spherical trigonometry.; Spherical projection.
Notes: Caption title.

Imprint from colophon.

Reproduction of original in the British Library.

Wing (2nd ed.) N1276A

Available electronically as part of Early English books online.

Microfilm. Ann Arbor, Mich. : University Microfilms International, 1986. 1 microfilm reel ; 35 mm. (Early English books, 1641-1700 ; 1748:45)