| DIALLING SCALES |
Frank Cousins popularised the scales made by E. C. Middleton which were based on
Samuel Foster's work in 1638, made practical by George Serle in 1657.
This is a PDF file of around 250k, four pages, and has a very simple explanation of how to use the Middleton
Scales for horizontal, non declining vertical, and declining vertical dials. Includes a scale, the formulae for the
scale, and values for time and latitude. The scale can also be used with polar and meridian dials.
general spreadsheet
Here is a one page PDF file of the scales, you print the page, cut it out, and fold it. Has the scales on the front, and
an EOT, Julian day, and Declination table on the back. Jan 27, 2010 Low resolution version, see to the right.
Frank Cousins in his book discusses their proof and usage for declining dials. The main web page has a link to
Abebooks into a search engine for Cousin's book ~ usually several are available
A search on the internet on MIDDLETON SCALES will often get a web site discussing them, and if in a foreign
language, a translate option is available from the search engine.
The North American Sundial Society has additional material for this method, including Middleton's original typed
notes which also show the scales being used for polar (equinoctial) dials as well as east and west facing
meridian dials. This is on the optional CD.
Samuel Foster's work in 1638, made practical by George Serle in 1657.
This is a PDF file of around 250k, four pages, and has a very simple explanation of how to use the Middleton
Scales for horizontal, non declining vertical, and declining vertical dials. Includes a scale, the formulae for the
scale, and values for time and latitude. The scale can also be used with polar and meridian dials.
general spreadsheet
Here is a one page PDF file of the scales, you print the page, cut it out, and fold it. Has the scales on the front, and
an EOT, Julian day, and Declination table on the back. Jan 27, 2010 Low resolution version, see to the right.
Frank Cousins in his book discusses their proof and usage for declining dials. The main web page has a link to
Abebooks into a search engine for Cousin's book ~ usually several are available
A search on the internet on MIDDLETON SCALES will often get a web site discussing them, and if in a foreign
language, a translate option is available from the search engine.
The North American Sundial Society has additional material for this method, including Middleton's original typed
notes which also show the scales being used for polar (equinoctial) dials as well as east and west facing
meridian dials. This is on the optional CD.
