James Ferguson F.R.S.
- Author: ANONYMOUS
- Publication place: [London
- Publication date: late eighteenth century]
- Physical description: Engraved portrait
- Dimensions: 160 by 100mm (6.25 by 4 inches).
- Inventory reference: 18170
London called, as it often does, and Ferguson found employment as a limner (or painter of miniature portraits), while he continued to dream of celestial mechanics. As he mused, he concluded that the “moon’s path is always concave to the sun. He devised a machine, which he called the ‘trajectorium lunare’, to show this, and demonstrated it to the Royal Society on 26 April 1744. He used his demonstration models at his advertised lectures at his lodgings, and his scientific reputation grew…” (Rothman). Eventually in 1757, Ferguson sold his business to Benjamin Martin and returned to writing and lecturing, and incorporated the various current astronomical events into his lectures. In 1761 George III granted him an annual pension of £50.
- BM 1958,1006.2722
- Burgess, ‘Portraits of doctors & scientists in the Wellcome Institute’, London 1973, no. 965.9
- Wellcome 2891i