1. From the original typescript for The Herschel chronicle by Constance Lubbock A. (Cambridge, 1933), XII, 35. In what follows, Chronicle followed by an arabic numeral refers to a page in the published version, while Chronicle followed by upper-case roman and then arabic refers to the typescript by chapter and page. I am very grateful to the owners, The William Herschel Society, of 19 New King Street, Bath, for making this invaluable source available to me.
2. “On the Power of Penetrating into Space”: The Telescopes of William Herschel
3. Herschel’s Scientific Apprenticeship and the Discovery of Uranus