1. When quoting from Birch's History and from Hooke's Diaries we have often omitted the pages referred to. It is very easy to find the entries by the dates.
2. Alhazen (Ibn al Haitam) Thesaurus Optics. Editor: F. Risner. Basel1572 .
3. A. Armitage Armitage :The deviation of falling bodies. Annals of Science 5 1947 .
4. Baily Baily : of Flamsteed1835 .
5. Rouse Ball Ball : Essay on Newton's "Principia", London1893 .