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• 08:05, 17 April 2022 CritterCompiler talk contribs created page File:Bidston Observatory Hotbox.png (The Bidston Observatory had a fine chronometer room thirty-six feet by twenty-one feet in which the two large hot boxes previously used at Waterloo Dock from 1861/2 were heated by gas from the cellar below. Each could hold one hundred chronometers which would be observed at temperatures between 50º to 85ºF throughout the year. The glazed lids of the boxes allowed observations to be made without requiring their removal. Temperatures would be changed weekly on a Saturday by 10º or 15ºF to show...)
• 08:05, 17 April 2022 CritterCompiler talk contribs uploaded File:Bidston Observatory Hotbox.png (The Bidston Observatory had a fine chronometer room thirty-six feet by twenty-one feet in which the two large hot boxes previously used at Waterloo Dock from 1861/2 were heated by gas from the cellar below. Each could hold one hundred chronometers which would be observed at temperatures between 50º to 85ºF throughout the year. The glazed lids of the boxes allowed observations to be made without requiring their removal. Temperatures would be changed weekly on a Saturday by 10º or 15ºF to show...)