Clavis horologiæ; or, A key to the whole art of arithmetical dialling : In two Parts. The first shewing how to draw the hour-lines on all manner of regular dials and how to reduce all irregular dials into regular forms, by means of a new latitude and new declination, and that arithmetically. The second part sheweth how to place all manner of furniture on all sorts of dials, let them be never so irregular, and that arithmetically: whereunto is annex'd the tables of the attitude of the sun for every hour of the day, at his entrance into the 12 signs, from one degree of latitude to 90; with tables of azimuch to each latitude, and for every hour of the day, at his entrance into each sign; with many other tables useful in the art of shadows. Whereunto is annexed an appendix, being the explication of the pyramidical dial set up in His Majesty's garden at White-hall, 1669. In which very many sorts of dials are contained: by which, besides the hours of all kinds diversly expressed, many things relating to georgraphy, alstrology and astronomy, are by the sun's shadow made visible to the eye, by that Reverend Father Francis Hall, alias Line, of the society of Jesus, professor of the mathematicks at liege in Germany. By John Holwell, teacher of the mathematicks. illustrated with curious copper cuts.

Format:

Book

Author/Creator:

Holwell, John, 1649-1686?

Series:

Eighteenth century collections online. Part 2: New editions.

Language:

English

Subjects (All):

Arithmetic--Early works to 1800.

Arithmetic.

Physical Description:

12 unnumbered pages,24,33-287 pages, 5 unnumbered pages,38 pages, 2 unnumbered pages,plates ; 4⁰

Place of Publication:

London : Printed for Tho. Hawkins, and sold by Tho. Tebb, at the Flower-de-luce in Little-Britain, 1712.

System Details:

Mode of access: World Wide Web.

text file

Notes:

A reissue of the edition of 1686 with a cancel titlepage.

The appendix has separate titlepage, dated 1685, pagination and register.

With a final advertisement leaf.

Text continuous despite pagination.

Appendix filmed separately as Wing H331 on UMI microfilm "Early English books, 1641-1700" reel 1701.

Electronic reproduction. Farmington Hills, Mich. : Cengage Gale, 2009. Available via the World Wide Web. Access limited by licensing agreements. s2009 miunns

Reproduction of original from Cambridge University Library.

Cited in:

English Short Title Catalog, T166591.

Access Restriction:

Restricted for use by site license.