Euclid Speidell Explained

Euclid Speidell (died 1702) was an English customs official and mathematics teacher known for his writing on logarithms. Speidell published revised and expanded versions of texts by his father, John Speidell.^[1] He also published a book called Logarithmotechnia, or, The making of numbers called logarithms to twenty five places from a geometrical figure in 1688.^{[2] [3]}

Speidell lived in Angel Alley in the 1680s and 1690s, according to the Survey of London.^[4]

Speidell's name appears on an instrument made by his contemporary Henry Sutton.^[5]

Notes and References

1. Beeley . Philip . Practical mathematicians and mathematical practice in later seventeenth-century London . The British Journal for the History of Science . June 2019 . 52 . 2 . 225–248 . 10.1017/S0007087419000207. 31198123 .
2. Book: Logarithmotechnia, or, The making of numbers called logarithms to twenty five places from a geometrical figure . WorldCat . 12621300 . 13 March 2020.
3. Euclid Speidell (1688)
4. https://surveyoflondon.org/map/feature/397/detail/ 84b Whitechapel High Street
5. Web site: The 'incomparable' Mr. Sutton: a famous 17th-century instrument maker . Jardine . Boris . 2008 . Whipple Collections . Whipple Museum of History and Science . 29 October 2016.