Found - a fascinating forgotten work Oddities: A Book of Unexplained Facts (Allan, London 1928) by R.T. Gould. Rupert Thomas Gould (1890 – 1948), was a lieutenant Commander in the British Royal Navy noted for his contributions to horology. While in the navy in WW1 he suffered a nervous breakdown. During long recuperation, he was stationed at the Hydrographer's Department at the Admiralty, where he became an expert on various aspects of naval history, cartography, and expeditions of the polar regions. He gained permission in 1920 to restore the marine chronometers of John Harrison, and this work was completed in 1933. Jeremy Irons played him in Longitude, a dramatisation of Dava Sobel's book about John Harrison Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time, which recounted in part Gould's work in restoring the chronometers.

Something of a polymath, he wrote an eclectic series of books on topics ranging from horology to the Loch Ness Monster. He was a member of the Sette of Odd Volumes (Brother Hydrographer) and the book Oddities is dedicated to the club. He was a science educator, giving a series of talks for the BBC's Children's Hour starting in January 1934 under the name "The Stargazer", and these collected talks were later published. He was a member of the BBC radio panel Brains Trust. He umpired tennis matches on the Centre Court at Wimbledon on many occasions during the 1930s. This is his chapter on Marin Mersenne (and of course Fermat). The reference to Mr R.E. Powers 'an American computer' dates the book, back then it meant 'one who computes..'