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FLAMSTEED HAD A COPY AS A TEENAGER.

STIRRUP, Thomas (fl. 1651–9) and William LEYBOURNE (1626–c. 1700)

Horometria: or, The compleat diallist . Wherein the whole mystery of the art of dialling is plainly taught three several wayes; two of which are performed geometrically by rule and compass onely: and the third instrumentally, by a quadrant fitted for that purpose. With the working of such propositions of the sphere, as are most usefull in astronomy and navigation, both geometrically and instrumentally. By Thomas Stirrup, philomath. Whereunto is added an Appendix, shewing how the parallels of declination; the Jewish, Babylonish, & Italian hours; the Azimuths, Almicanters &c. may be easily inscribed on any dial whatsoever, by rule and compasse onely. And to draw a dial on the seeling of a room, by W. Leybourn. The second edition with additions

London: printed by R. & W. Leybourn, for Thomas Pirrepont, 1659
4to: A–2A4, 96 leaves, pp. [8] 181 3. A1r blank, full-page woodcut on A1v, title within a border of fleurons and with a small woodcut device of the sun, repeated on 2A4v, a few other typographic and woodcut decorations and numerous woodcut diagrams and initials.
Condition: 180 x 137mm. Clean tear in U2, just into the text; overall light browning and foxing.
Binding: Contemporary sprinkled calf, blind panelled sides tooled with fillets and dotted gouges, floral corner ornaments. Rebacked, one corner repaired, other corners worn.
Provenance: 1. Anthony Coates, signature repeated several times on end-leaves, once with the date 1667; 2. Sir Thomas Willoughby (c.1670–1729), second Baron Middleton, with signature on title; Harrison D. Horblit (H. P. Kraus Catalogue 169, 1984, no. 155). There are some notes on dialling on the rear pastedown.
Second edition, issue without the independent work by Serle. This is are-setting of the 1652 edition using the same woodcuts with an extra chapter (which is not listed in the table of contents) in the Appendix by Leybourne, replacing two paragraphs of apology for not giving more examples. Another issue has a different state of the title in which the sun device is replaced with a notice that George Serle's Dialling Universal (1657) is appended.
Bibliography: Wing S5689 (issues not distinguished); this issue not in ESTC but cf. r207639; Taylor 205 (no date or other publication details given).
£1,800

The second edition of Stirrup’s work on sundials, quadrants and other instruments containing some additional types of dial. It was probably the second edition of which Flamsteed wrote ‘I likewise now got Mr. Stirrup’s Art of Dialling, which I read this summer [1663], and some other authors of mathematical subjects’. This would have been around Flamsteed’s seventeenth birthday: the previous Christmas, after reading Fale’s Art of Dialling he had set himself to calculate a set of solar tables and construct a quadrant (Francis Bailey, An account of the revd. John Flamsteed, 1835, p. 10).
As well as being a specialist in the making of dials and quadrants, Stirrup was probably also a mathematical teacher, although he did not advertise himself as such (Taylor no. 248 on p. 238).
The book was also sold with an earlier work, Serle’s Dialling universal (1657) appended – no doubt to make use of unsold sheets – but because the change in wording advertising this occurs far down on a verbose titlepage it is apt to be overlooked and it is generally impossible to tell from library catalogues which form of the book is described. There is no ESTC record for the form without Serle, as here, although in fact several of the locations given for the combined issue are of the Stirrup only issue.
Keywords:     astronomy    scientific instruments