Clavis horologiæ; or, A key to the whole art of arithmetical dyalling : in two parts. The first shewing how to draw the hour-lines on all manner of regular dyals, and how to reduce all irregular dyals into regular forms by means of an new latitude and new declination, and that arithmetically. The second part sheweth how to place all manner of furniture on all sorts of dyals, let them be never so irregular, and that arithmetically; whereunto is annexed the tables of the altitude 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 azimuth 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 dyal set up in his Majesties garden at White-Hall, 1669. In which very many sorts of dyals are contained; by which, besides the hours of all kinds diversly expresed, many things relating to geography, astrology and astrononmy, are by the suns shadow ma

Author/creator Holwell, John
Other author Line, Francis, 1595-1675.
Format Electronic
Publication InfoLondon : printed by Will. Bonny, for Tho. Howkins in George-Yard in Lombard-Street, MDCLXXXVI. [1686]
Description[12], 24, 33-287, [1]; [4], 38, [2] p., plates
Supplemental Contenthttps://search.proquest.com/docview/2248540440
Subjects

Variant title Clavis horologiæ
Variant title Key to the whole art of arithmetical dyalling.
Variant title Appendix to Clavis horologiæ.
SeriesEarly English books online. ^A888680
General note"An appendix to Clavis horologiæ" has separate dated title page; pagination and register are separate. It is a reprint of Francis Line's "An explication of the diall sett up in the Kings garden at London, an. 1669".
General noteText continuous despite pagination.
General noteReproduction of the original in the Harvard University Library.
References Wing (2nd ed.) H2517A
Reproduction noteElectronic reproduction. Ann Arbor, Mich. : UMI, 1999- (Early English books online) Digital version of: (Early English books, 1641-1700 ; 1795:13)
Other title Explication of the diall sett up in the Kings garden at London, an. 1669.
Stock numberCL0037000068 ProQuest Information and Learning. 300 N. Zeeb Rd., Ann Arbor, MI 48106

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