Jordan, Gibbes Walker The observations of Newton concerning the Inflections of Light; accomanied by pother observations differing from his; and appearing to lead to a change of his theory of light and colours London Cadell and Davies 1799 Elektronische Version: https://nl-1sub-1uni-2goettingen-1de-1laiues1g4b1f.han.sub.uni-goettingen.de/id/0274900900?origin=/collection/nlh-ecc#{%22panel%22:%22metadata%22,%22zoom%22:1,%22lat%22:-173.5,%22lng%22:86} JORDAN, Gibbes Walker: The observations of Newton concerning the Inflections of Light; accompanied by other observations differing from his; and appearing to lead to a change of his theory of light and colours. London : Cadell and Davies, 1799