This a work in progress, really at the start of its journey. Eventually Bulletins from the last 30 years and more will be available, but for now it starts with the first in 1989 and I'm working forwards from there as quickly as time allows.
webmaster@sundialsoc.org.uk, February 2025
Click on the title of the article to go to that page in the PDF of that issue. Please note that the PDF file sizes of the older issues are a little large (e.g. 60-100MB) so please be patient with them.
Articles are also categorised. If you click on the name of the category, you will be taken to a page showing similar articles.
3. From the Chairman’s Pen by Christopher St.J. H. Daniel
The chairman, Christopher St. J.H. Daniel, emphasizes the importance of preserving Britain's historic sundials, noting their decline due to neglect and development.
4. The Secretary’s Notebook by David A. Young
5. Astronomical Endeavours and Highlights under Allah’s Sun by Rene R-J. Rohr
Rohr discusses the use of astrolabes in Islamic astronomy and the challenges faced by Muslims in higher latitudes where the sun does not go below 18 degrees below the horizon, making it difficult to define the end of evening twilight and the start of morning twilight. Category: Historical Dials
11. Moondials by Rear Admiral Girolamo Fantoni
The principles of moondials, which measure time using the moon's position. The article discusses various methods for calculating lunar time and constructing moondials, including tables, circular slide rules, and equatorial sundials with lunar corrections. Categories: Unusual Dials, Mathematics of Dialling, Sundial Design
16. Foster’s Diametral Sundial by Frederick W. Sawyer III
Describes the diametral sundial invented by Samuel Foster, a horizontal dial with a movable stile where the hour points are located on a finite segment of a straight line causing the shadow to move retrogradely daily at a set time. Categories: Unusual Dials, Mathematics of Dialling, Sundial Design
18. Sundial Alignment by the use of the Pole Star by C.M. Lowne
A method for aligning a sundial using the Pole Star and Beta Ursae Minoris.
19. The Azimuth Dial by H. R. Mills
The construction of an azimuth dial, focusing on the mathematical calculations required to determine the shadow angles for the sun at declination 0°. Categories: Analemmatic Dials, Mathematics of Dialling
22. A Sundial Delineator by Alan A. Mills
Alan Mills provides information about the use of a cursor on an equatorial style to trace zodiacal lines and describes how to calculate the sun's declination. Category: Tools
23. Sundials used for Navigation by Maurice J. Kenn
Outlines how sundials have been adapted for navigation in the 20th century, citing examples such as the Bumstead "Sun Compass" and the "Astro-Compass". Category: Historical Dials
24. The Miracle of Ahaz by Peter I. Drinkwater
Clarifies the biblical passage about the "Dial of Ahaz," noting that the original Hebrew text refers to "steps" and a "staircase," not a dial. The article also references a description of an "ancient Jewish Sundial" that may have been a form of a Hemicycle. Category: Historical Dials
This section profiles Harriet Wynter, an antique dealer who became an expert in scientific instruments, including sundials.
26. The 1991 Cambridge Conference by Mrs. A. D. Hannekuyk
28. Cambridge Lecture ‘Dialling Literature’ by Charles K. Aked
Discusses the challenges of compiling a comprehensive bibliography of dialling literature. The lecture reviews previous attempts, the breadth of the material and the difficulty of obtaining copies of early works. Category: Book Reviews
33. Cambridge Lecture ‘Gnomonics’ by Fer de Vries
A method for calculating the inclination and declination of a plane for sundial construction, using coordinate transformations and trigonometry. Category: Mathematics of Dialling
35. ‘What is Time?’ by Harriet Wynter
A poem reflecting on the nature of time, its relentless passage, and humanity's place within it.
38. Dial-ectic by Charles K. Aked
Discusses the word "dial" as a prefix and its use in various contexts, drawing on definitions from the Oxford English Dictionary.
39. Editor’s Fare by Charles K. Aked
40. A Protest Sundial by Miltun Tadic
A protest sundial built in Sarajevo, designed to make a political commentary on the situation in Yugoslavia.
2. William Gilbert of Colchester
Discusses the historical context of sundials before the invention of the magnetic compass and highlights William Gilbert's work on magnetism and his reference to sundials in his book De Magnete. Category: Historical Dials
3. The Hampton Court Dial of John Marr, 1631, Part 4 by A. R. Somerville
Explains how to use the Hampton Court sundial to determine the hour of sunrise and sunset, as well as the length of day and night. It also describes how to determine what date the day will be increased or decreased by a certain time15, and how to find which stars are on the meridian. Category: Historical Dials
4. Flower Power
How flower beds can be laid out to form a "clock face," with different flowers opening at specific times, synchronized to local solar time Categories: Unusual Dials, Sundial Design
5. Treasures of the Church by T.W. Cole collated by Charles K. Aked by T.W. Cole
The history of scratch or mass dials found on churches, noting their evolution from small, inconspicuous markings to larger, more prominent dials, including how they were likely painted. Category: Historical Dials
13. The Dials of Bonar by Gordon E. Taylor
Summarises a lecture on the sundials made by John Bonar in the early 17th century, noting they are of the equatorial type, and feature poetry, text, and tidal calculations.
15. Progress on the Sundial Register by Gordon E. Taylor
Outlines the BSS's efforts to create a computerized register of sundials for historical research and restoration purposes. It explains the challenges of recording and storing data. Category: The BSS and its members
15. General Notes on Sundials (Hour Angle Types) by P. D. Briggs
Presents several facts about sundials, including hour divisions, the equator's 12-hour day, the poles' 6-month days and nights, and the relationship between horizontal and vertical dials. Category: How Sundials Work
16. The Da’ire-Yi Mu’ Addil by Rene R-J. Rohr
An 18th-century Islamic instrument used for determining prayer times, highlighting Islamic science's historical contributions to astronomy and mathematics. The article details the instrument's construction and function, and how it is used to determine prayer times using mathematical curves and an alidade. Category: Historical Dials
20. Symbols of Society: The Emblem of the British Sundial Society by Christopher St.J. H. Daniel
Discusses the process of creating an emblem for a new scientific organization. Category: The BSS and its members
21. Profile – Cumbrian Members
Profiles two members of the BSS, Robert Sylvester and Ray Hartland, noting their interest in sundials and their work in recording dials in Cumbria. Category: The BSS and its members
22. Telling the Time by the Spire by Frank Stevens
In Salisbury, the Cathedral spire itself has been made into a sundial. On the low north wall, which encloses the Cathedral Green, may be seen an engraved line over which the shadow of the spire passes at mid-day. Category: Historical Dials
24. A Self-Orienting Equiangular Sundial by Frederick W. Sawyer III
Describes a sundial that can orient itself using the sun without a compass or other external device, and defines the criteria for a self-orienting sundial. Category: Mathematics of Dialling
26. Book Reviews
Reviews several books on sundials, including "Orologi Solari" by Girolamo Fantoni, "Cadrans Solaires" by Artissime, "The Eternal Landscape" by John Davies, "Cambridge Sundials" by Alexis Brookes and Margaret Stanier Category: Book Reviews
Gerard Sonius, member of 'De Zonnewijzerkring', has developed a sundial for the blind. The dial is located at the blind-institution 'Bartimeus', Zeist, The Netherlands. Categories: Unusual Dials, Sundial Design
31. Curiosities of Dialling by Peter I Drinkwater
Discusses shadow squares and the "instrument horarum" as tools for determining shadow lengths. Category: Historical Dials
33. Sundials can be Simple and Legible by Maurice J. Kenn
A translucent sundial designed to be legible from multiple viewpoints. Categories: Unusual Dials, Sundial Design
34. The Accuracy of using Polaris to Align a Gnomon by Gordon E. Taylor
Further elaborates on the use of Polaris for gnomon alignment, including a table of transit times. Category: How Sundials Work
35. Secretary’s Notebook by David A. Young
35. Computer Program Listing by Hector C. Parr
Category: Mathematics of Dialling
37. A New Latitude-Independent Sundial by J.A.F. de Rijk
Presents an article by J.A.F. de Rijk on a sundial design that does not depend on latitude. Categories: Unusual Dials, Sundial Design, DIY Sundials
3. The Hampton Court Dial of John Marr, 1631, Part 3 by A. R. Somerville
This is a continuation of an article about a dial made by John Marr. It explains how to determine the ascensionall difference, azimuth, altitude, declination of the sun, and the unequal (Judicial) hours using the dial's shadow. Category: Historical Dials
5. The Spherical Sundial as a Mean Time Dial by James Richard
Discusses how a spherical sundial can be used as a mean-time dial for six months of the year by placing hour marks at specific points instead of on the equator. Categories: Unusual Dials, Mathematics of Dialling, Sundial Design
8. Look at it this Way – Again by George Woodford
Examines the various tilts of plane sundials, focusing on clarity, legibility, and environmental compatibility, and looks at shadow regimes based on latitude. It explores the concept of "night factor" - how a dial's tilt affects its ability to register time, as well as the importance of horizon. Categories: Mathematics of Dialling, Sundial Design
13. The World Upside Down by H. W. van der Wyck
This essay reflects on the differences in sundial usage and perception in the Southern Hemisphere, discussing how traditions and habits might affect the perception of time in different hemispheres.
14. A Sundial for the Windowsill by J.G.T.M. Cabot
This article introduces a concept for a sundial that can be placed on a window sill, using the sun's shadow on a stationary reading point. Categories: Unusual Dials, Sundial Design, DIY Sundials
15. The Astronomical Quadrant of Santa Maria Novella by Giovanni Paltrinieri
An astronomical quadrant on the facade of a church in Florence, detailing various dials including Italian, French, Planetary, and Canonical hours. Category: Historical Dials
20. Equation of Time at Noon UT by Robert Sagot
Methods for calculating the equation of time. It explains different procedures using ephemerides and tables, and discusses how to construct a table of mean values for the equation of time. It also presents formulas for calculating the analemma curve. Categories: Mathematics of Dialling, Equation of Time
22. A Glass Dodecahedron by F.J. de Vries
This is a note about a new computer program for drawing a dodecahedron and an interface to a professional drawing program, ACAD
24. The Analemmatic Dial by Mark Lennox-Boyd
This article presents a trigonometric proof for the analemmatic dial formulas, relating the equatorial, horizontal, and analemmatic dials Category: Mathematics of Dialling
25. Linda Lack – A Schoolgirl Diallist
This section commends a young student for making a sundial and pedestal herself, demonstrating enthusiasm and skill in the project.
25. Book Reviews
Reviews of books related to sundials, including "Sundials of Biscaya", "Georg Hartmann of Eggolsheim", and "Sundials" by R. Newton Mayall and Margaret W. Mayall Category: Book Reviews
30. Corrections to Waugh’s ‘Sundials: Their Theory and Construction’ by Noel C. Ta’Bois
This article provides a profile of the chairman of the British Sundial Society, detailing his career, publications, and involvement in sundial organizations Category: The BSS and its members
32. The British Sundial Society Annual Conference 1991
34. An Equant Dial by Frederick W. Sawyer III
An equant sundial - a horizontal dial that can be more asily ajusted for the equation of time by drawing a curve based on an equant point. Categories: Unusual Dials, Mathematics of Dialling
35. The Sundial in the Manuscript 225 by Ripoll Eduard Farre i Olive
This article describes a manuscript from the 10th century that includes instructions for constructing a horizontal sundial with temporary hours. It includes instructions for laying out the dial on the stone and dividing the hour circles. Categories: Construction of sundials, Historical Dials
38. Sundial Calculations for Computer Programming by Hector C. Parr
his article discusses how to calculate hour lines for any dial using computer programming. Category: Mathematics of Dialling
39. Secretary’s Notebook / Conference – Queens’ College, Cambridge by David A. Young
39. Conference – Queens’ College, Cambridge
40. Worgan in Australia by Charles K. Aked
This article discusses a sundial made by John Worgan and how it ended up in Australia
3. Making a Start – The Equation of Time by David A. Young
This article by David Young explains the concept of the equation of time, which is the difference between solar time and mean time. It details how the tilt of the Earth's axis and the elliptical shape of Earth's orbit around the sun cause this variation. Category: Equation of Time
4. The Hampton Court Dial of John Marr, 1631, Part 2 by A. R. Somerville
Describes a historical sundial at Hampton Court, detailing the multiple circles and divisions on the dial's horizontal concave surface. Category: Historical Dials
6. A Cross Dial for a Scot by George Wyllie
Cross dials, also called star dials, use a notch with surfaces parallel to the Earth's polar axis. The shadow of the notch indicates the time, with different angles of the notch recording different durations of time. The piece explains how to design these dials. Categories: Multi Faced Dials, Sundial Design
8. The Roman Cylindrical Sundial in the Zemaljski Museum, Sarajevo, Yugoslavia by Milutin Tadic
A Roman cylindrical sundial found in Stolac and housed in the Zemaljski Museum in Sarajevo, with a concave dial surface and the horizontal gnomon. Categories: Hemispherical Dials, Sundial Design, Historical Dials
10. Aligning the Gnomon by Allan A. Mills
Describes a simple jig and a more sophisticated peep-sight device that can be used to align the gnomon with Polaris Category: How Sundials Work
11. One Way of Looking at it: Equatorial and Polar Dials by Colin McVean
This article discusses equatorial and polar sundials. It also describes the use of a polar dial that is set up with its plane parallel to the axis of the poles with a pin in its center, which can be combined with an equatorial dial to show time in the winter.
14. Horological Dialogues by J.S. Clockmaker by Charles K. Aked
This article presents excerpts from the 1675 book Horological Dialogues by J.S. Clockmaker (John Smith) Category: Book Reviews
18. A Latitude-Independent Sundial by J. G. Freeman
Describes a sundial that does not require knowledge of the user's latitude for either construction or use, includng the theory behind this sundial. The article goes on to detail the sundial’s components and method of use, which includes a thin flat plate gnomon with a curved edge and a time scale on a baseboard. Categories: Mathematics of Dialling, Sundial Design, DIY Sundials
29. Sundials at Jodrell Bank by David A. Young
British Sundial Society has made proposals to provide different types of dials, larger demonstration dials for younger visitors, and resource materials for teachers.
30. Departmental Distribution of French Sundials by D. Savoie
Description of maps showing the distribution of sundials in France and Corsica.
32. A ‘Human’ Sundial by Margaret Stanier
Describes a human sundial in Cambridge, where a child's shadow acts as the gnomon on an analemmatic dial to show the time.
33. Exhibition Souvenir from Schoonhoven / Greenwich Meeting
An exhibition at the museum in Holland that included sundials. The article mentions a large instrument with lamps that cast shadows on a dial, as well as sundial photographs, and a souvenir card with a horizontal sundial for the latitude of Schoonhoven.
36. Secretary’s Page David A. Young / Noble Science Monumental Sundial
1. Dialogue – Antique Clocks & other news
3. The Hampton Court Dial of John Marr, 1631 by Dr. A. R. Somerville
This article describes a complex sundial erected in 1631 with lines and circles illustrating various aspects of the sphere. The dial is on a prism-shaped stone featuring a concave hemisphere and eight faces, each with a dial.
4. Sundials in the Afternoon / Notice of Meeting
5. On Reflected Ceiling Dials by Rene R-J. Rohr
This article explores reflected ceiling dials, often created for entertainment or prestige. These dials use a mirror to project sunlight onto a ceiling marked with time indicators. The article references historical figures like Isaac Newton and Christopher Wren, who were said to have experimented with them. The article further references the book Gnomonica Universalis. Categories: Reflected Dials, Historical Dials
12. The Spherical Sundial by Peter I. Drinkwater
Discusses spherical sundials, noting the prevalence of armillary spheres and contrasts these with 16th-century convex hemispheres with pin gnomons. The article also discusses how a convex sphere's coordinates can be projected onto a plane, creating an analemmatic dial. Categories: Analemmatic Dials, Equatorial Dials, Mathematics of Dialling, Construction of sundials
14. Minimum Length of Gnomon by Peter I. Drinkwater
How does one calculate the length of a gnomon for a sundial? Category: Mathematics of Dialling
15. Seasonal Hour Sundials for the British Isles by Allan A. Mills
This article explains seasonal-hour sundials which divide the day into twelve equal parts from sunrise to sunset, which vary in length. Diagrams for vertical and horizontal seasonal-hour dials for the British Isles are provided.Instructions on using these diagrams with a nail as a gnomon are also given. Category: Construction of sundials
22. Dr. Andrew R. Somerville – A Personal Appreciation by Charles K. Aked
Charles K. Aked writes a personal tribute to Dr. Andrew R. Somerville, emphasizing his contributions to the study of sundials and the founding of the British Sundial Society.
24. Some Sundial Safaris with Andrew Somerville by G. R. Higgs
The author's sundial explorations with Andrew Somerville in Scotland, detailing their discoveries and restoration efforts, and also describes an obelisk sundial that Dr. Somerville designed.
26. Q for Question by George Woodford
Presented in a question and answer format, this piece discusses a didactic hemispherical sundial model for explaining the principles of sundials. Categories: Hemispherical Dials, How Sundials Work
27. Profile – Charles K. Aked /
A profile of the Bulletin's editor, Charles K. Aked. It details his career, his lifelong interest in horology, and his many contributions to horological societies and publications.
27. Poem – ‘The Forgotten Sundial’
28. Andrew Somerville Memorial Fund
28. Making a Start – Vertical Sundial
This article provides instructions on how to construct a south-facing vertical sundial14. It presents a step-by-step geometric method, suitable for beginners. Categories: Vertical Dials, Construction of sundials, DIY Sundials
30. Pages from F. Barker & Sons Ltd. Sundial Catalogue
31. ‘The Nelson Touch?’ by Charles K. Aked
Letters to The Times regarding a proposal to turn Nelson's Column in Trafalgar Square into a giant sundial.
1. In Memoriam – Dr. A. R. Somerville
2. Dialogue – De Zonnerwijzerkring; La Busca de Paper; Alte Uhren
3. Chairman’s News: George Higgs – 90 Years Young
5. Letters and Comments from Members
6. The British Sundial Society Oxford Conference 24/25 March 1990
A report summarizing the British Sundial Society's conference in Oxford, noting the lectures, tours, and overall positive experience
8. Early Sundials in Royal Gardens by Dr. A. R. Somerville
Discusses historical sundials in royal gardens, particularly at Whitehall Palace and Hampton Court, drawing on sources such as The History of the King's Works. It describes various sundials, their designs, and the people involved in their creation and maintenance, including John Marr. It also discusses Francis Hall's dial and the various challenges these dials faced. The article also discusses dial fashions in England and Scotland. Category: Historical Dials
11. Record Form Topics by Robert B. Sylvester
12. 16th Century Sundials found in Hungary by Lajos Bartha
Details the discovery of small bone/ivory pocket sundials in Hungary, describing the sundials and speculating on their origins and use. Category: Historical Dials
14. A Unique Greek Sundial by Rene R-J. Rohr
A unique sundial discovered in Afghanistan, its design and how it was used to measure time
17. Understanding the Lambertian Circles by Peter I. Drinkwater
Provides an explanation and diagram illustrating Lambertian Circles in relation to analemmatic dials Category: Historical Dials
19. A Brief Explication of a Pyramidical Dial by William Leybourn
Discusses a pyramidical dial set up in the King's Privy Garden at Whitehall, describing the dial's complex structure and function Category: Historical Dials
25. Sundiallers at Oxford – a Conference Poem by Mrs. Anne Born
A poem by Anne Born, commemorating the first conference of the British Sundial Society
Rreviews a catalogue of clocks and precision instruments from the Chateau d'Ecouen museum, focusing on the sundial and nocturlabe sections Category: Book Reviews
Lists publications related to sundials including an index of articles in Antiquarian Horology, a booklet about the sundials of Oxford Colleges, and a book of Oronce Fine's work Category: Book Reviews
29. A Double Analemmatic Noon Mark by Professor Alan Smith
Describes an empirical method for creating a double analemmatic noon mark Categories: Analemmatic Dials, Construction of sundials, DIY Sundials
31. Wood’s Curiosities of Clocks and Watches by Charles K. Aked
Explores the history of timekeeping, discussing sundials, clepsydrae, and clocks, with references to Shakespeare's plays Category: Historical Dials
Data on fixed sundials in Austria and the German Democratic Republic.
This section is a compilation of news from various international gnomonic societies and publications. La Busca de Paper is the journal of the Catalonian Society of Gnomonics; De Zonnewijzerkring is the journal of the Netherlands Gnomonics Society; Alter Uhren is a German magazine about old clocks; Horlogerie Ancienne is a French journal about old clocks; Accademia del Sole is the journal of the Academy of the Sun and applied Art and Science at Turin; and Arbeitskreis Sonnenuhren is a German society dedicated to sundials.
2. Obituary Notice – Death of BSS President Dr. F. A. B. Ward CBE
3. A Mediaeval Scratch Dial on the Gothic Church of Rudabanya, Hungary
Discusses a medieval scratch dial on a church in Hungary. It gives details about the dial's location, construction, and historical context, as well as its significance as one of the few remaining examples of its kind Category: Historical Dials
4. A Method of Finding with Increased Accuracy the Position of Shadows Cast by the Sun
This article describes a method to improve the precision of measuring shadow positions, offering a practical technique for sundial observation Category: Sundial Design
5. Inscriptions for Sundials by Peter I. Drinkwater
This article explores the history and meaning of inscriptions on sundials, also known as mottoes, providing historical and philosophical insights Category: Mottoes
8. Sundials of the Kappelturm Gallery at Obernai by Rene R.-J. Rohr
This detailed article analyzes the sundials found in the Kappelturm gallery in Obernai, France, examining the watchmen's attempts to create timekeeping devices and their errors. It provides a comprehensive look into the history of the tower, the watchmen's duties, and the various dials they created Category: Historical Dials
11. Lambert’s Circles, an addendum to article published in Bulletin No.1 – The Sun Compass
References and a picture of the Sun Compass developed by P. A. Koning of the United States to allow the tanks of World War 2 to be able to navigate in the Sahara Desert. Category: Analemmatic Dials
12. A Boulby Sundial at Walton Hall, Wakefield by Robert B. Sylvester
This article describes the unique multi-faceted Boulby sundial located at Walton Hall, highlighting its historical context and association with the naturalist Charles Waterton Categories: Multi Faced Dials, Historical Dials
14. Book Review: How to Make Sundials – Clockmaking in Oxfordshire
Category: Book Reviews
15. A Prognostication by Leonard Digges
This article discusses the historical text "A Prognostication" by Leonard Digges, highlighting its sections on sundials and timekeeping. The article also provides background information about Digges's life and the conditions under which he published his work, including his dedication and foreword Categories: Equatorial Dials, Book Reviews, Historical Dials
20. Look at it this Way by George P. Woodford
A novel perspective on the design and assessment of sundials, focusing on the "regime angle" and using the earth itself as a model for understanding shadow regimes. It proposes that a sundial's design can be understood by its latitude and declination. Category: Sundial Design
22. Subscriptions – A Word from the Treasurer
This article presents a solution to the puzzle set in 1989 November Bulletin, which gives the calculations for the 1576 Digges Dial Categories: Multi Faced Dials, Mathematics of Dialling, Sundial Design, Construction of sundials
24. Chairman’s News by Dr. A. R. Somerville
1. News items
2. An Analemmatic Dial on a Vertical Plane by Peter I. Drinkwater
Categories: Vertical Dials, Analemmatic Dials
5. The Construction of Sundias by Charles K. Aked
The construction of sundials is discussed, with references to available books on the subject. Several books on sundial construction are mentioned including works by Winthrop W. Dolan, Christopher St. J. H. Daniel, and Peter I. Drinkwater Category: Book Reviews
7. Helio-Tropes, or New Posies for Sundials by John Parmenter
This article examines sundial inscriptions, or "posies," from a manuscript by John Parmenter, a priest from the 17th century. The article examines thirty-three sundial mottoes and provides interpretations of their meanings Category: Mottoes
11. Photographing Sundials by Alan Partridge
Advice is provided on how to photograph sundials, including considerations for equipment, lighting, and composition. The article suggests taking multiple shots, including a general view of the building and a close-up of the dial.
12. Installation of Dials at Puerta de Toledo, Madrid
13. Extract from William Stukeley’s Diaries
An extract from William Stukeley's diary mentions a "spot dyal" invented by Gilbert Clark, which shows the time within a room using a ray of sunlight Category: Historical Dials
14. Starting to look for Sundials by Dialhunter
Advice is provided for those who are beginning to search for sundials, including where to look and what equipment to bring.
15. A Geometrical Puzzle by Dr. A. R. Somerville
16. Remote Reading Sundial by W. G. Benoy
Category: Sundial Design
19. Book Review – L’Horloge Solaire du Lycee Stendahl 1673
Category: Book Reviews
21. Annual General Meeting and Conference, Exeter College, Oxford, 1990
23. Analysis of Members’ Questionnaires by Mrs. Anne Somerville
24. Cut-out model of Digges’ Sundial by George Higgs
Categories: Multi Faced Dials, DIY Sundials
1. Aims of Society and Editorial. Comment.
1. Honorary Officials of the British Sundial Society
2. News Items and Continental Study Groups
2. Listing of Sundial Articles in Clocks and Antique Clocks
5. Lambert’s Circles by Rene R.-J. Rohr
An article by Rene R-J. Rohr discusses Lambert's circles and their relationship to analemmatic sundials. The article discusses how to determine the times of sunrise and sunset using these circles, including their application to the universal dial of Antoine Parent, and how they can be used to create a sun compass. Categories: Analemmatic Dials, Mathematics of Dialling
9. The Sundial at Madeley Court, Shropshire by Dr. A. R. Somerville
An article by Andrew R. Somerville details a unique 16th-century stone cube sundial with multiple hollows for different gnomons, along with its possible uses and historical context. The dial may be associated with the work of Nicolaus Kratzer, who introduced multiple sundials to England in the 16th century. It may also be connected to the Jacobean garden at Madeley Court, and its geometric and symbolic elements. Categories: Cube Dials, Multi Faced Dials, Historical Dials
12. Sun Time by Peter I. Drinkwater
Contrasts the "true" time indicated by sundials with the artificial time of clocks (GMT, BST) and advocates living in accordance with the sun's rhythm Category: Equation of Time
12. Sundial Books by Charles K. Aked
Category: Book Reviews
13. A National Recording of Sundials by David Young