June 2011 page 43
Gordon E. Taylor
John Foad

Readers’ Letters (continued)

Gordon Taylor describes challenges in orienting the Seven Dials monument. John Foad, the Registrar, corrects the number of war memorial dials in the BSS Register, increasing the total and, consequently, the estimated number of unfound dials using Tony Wood's formula.
Historical Dials, The BSS and Members

September 2004 page 122
Gordon E. Taylor

Where is the Sun?

Technical article on computing the Sun’s position for dial work: includes input/output examples (SUNAZALT style), azimuth/altitude tables and worked examples relevant to gnomonic layout and correction calculations.
Mathematics of Dialling

July 1997 page 37
Gordon E. Taylor

Dials of Bonar

A corrected version of a table of compass directions of ports on four Bonar sundials
Historical Dials

February 1996 page 29
Gordon E. Taylor

Where is the Sun?

An article exploring solar position calculations and their practical applications in sundial construction.
Mathematics of Dialling

July 1991 page 25
René R.-J. Rohr
E. J. Tyler
Gordon E. Taylor

Book Reviews

This section features reviews of three books. 'Bizkaiko Eguzski-Erlojuak' is a bilingual catalogue of Biscayan sundials. 'Georg Hartmann of Eggolsheim' studies a Franconian mathematician and instrument-maker. 'Sundials' by Mayall and Mayall, reviewed by Gordon E. Taylor, notes updates but also highlights production errors and a persistent 'howler' regarding moon dial observation, emphasizing revision importance.
Book Reviews

July 1991 page 27
Gordon E. Taylor
Denis Schneider
J. G. Freeman

Letters to the Editor

This section compiles letters on diverse sundial topics. Gordon E. Taylor recounts issues with sundial projects undertaken by the uninformed, while Denis Schneider discusses possible errors in tidal dial information and moon dial prospects. J.G. Freeman provides a crucial formula for wall orientation calculations. Allan Mills proposes using N and S extensions to the polar axes of a spherical model earth as gnomons, bringing the noon mark to where it would be expected (rather than at the terminator).
The BSS and Members

October 1991 page 13
Gordon E. Taylor

The Dials of Bonar

This article, a summary of a lecture by Mr. Taylor, examines four equatorial sundials made by John Bonar between 1623 and 1634. These dials feature poetry, zodiac signs, moon age, and compass points with port names, indicating their use for tidal calculations rather than just timekeeping. The article notes Bonar's errors in gnomonics despite his poetic skill and details the current locations of the surviving dials.
Dials: Equatorial, Historical Dials

October 1991 page 15
Gordon E. Taylor

Progress on the Sundial Register

Gordon E. Taylor reports on the development of the British Sundial Society's computerised sundial register, designed for historical research and restoration. With an estimated 10,000 sundials in the British Isles, the project aims to minimize paperwork by storing key information like location, type, condition, and maker in a database using custom-written programs due to limited funds. Members with computers are invited to assist with data input.
The BSS and Members

October 1991 page 34
Gordon E. Taylor

The Accuracy of using Polaris to Align a Gnomon

Gordon E. Taylor examines the accuracy of aligning a sundial gnomon using Polaris. He explains that while Polaris is close to the celestial pole, its slight deviation introduces errors. Calculations show a maximum time error of 6.2 minutes for a horizontal dial if Polaris is observed at any time of year, but this can be reduced to 1 minute by observing near upper or lower transit.
Mathematics of Dialling

June 1990 page 6
Gordon E. Taylor

The British Sundial Society Oxford Conference 24/25th March 1990

This report covers the inaugural British Sundial Society conference at Exeter College, Oxford. Key activities included the adoption of the Society's constitution, discussions on the Bulletin, a guided tour of Oxford's sundials, a members' exhibition, and lectures on diverse gnomonic subjects.
The BSS and Members