Musson,A. E.;Robinson,E.(June 1960).“The Origins of Engineering in Lancashire”.The Journal of Economic History(Cambridge University Press on behalf of the Economic History Association)20(2): 209–233.JSTOR2114855.
Fitton,R. S.(1989).The Arkwrights: spinners of fortune.Manchester University Press.p.14.ISBN978-0-7190-2646-1."It must have been about 1764 or 1765 - the time Highs was later to claim he had first become acquainted with Arkwright - that, again assisted by Kay, he began work on a machine for spinning cotton by rollers."
Aikin,J.;Johnston,W.(1799).General Biography.1.London:Robinson.p.391.OCLC220051472."John Kay became acquainted with him and dissuaded him from it [perpetual motion contrivances]"
Ure,Dr Andrew(1861).“The Factory System”.The cotton manufacture of Great Britain investigated and illustrated.Bohn's scientific library.II.H.G. Bohn.p.249.OCLC1979449.https://books.google.co.jp/books?id=Ofzkkldz6lMC&pg=249&redir_esc=y&hl=ja."Arkwright, aware of the importance of the spinning apparatus, which he was then concocting, may have disguised the purpose of his wheels under the name of a perpetual motion."
“Arkwright, Richard (1732-1792)”. cartage.org.2012年3月15日時点のオリジナルよりアーカイブ。2012年12月12日閲覧。“According to most accounts, Arkwright had the idea for a spinning frame, a powered machine which would spin cotton using a system of rollers. Lacking the technical expertise to put the idea into execution, he called on Kay’s skills to build the first working models.”
“Sketch of the life of Arkwright”.Glasgow mechanics' magazine, and annals of philosophy2: 4.(1825)."the merit of the first suggestion of the principle, it is said, is attributable to Kay... But it must be observed, in the first place, that the machine which Kay constructed for Mr. Hayes [Highs] did not succeed; and it is well-known that many others besides Hayes were at this time engaged in making experiments to change the mode of spinning."
"Arkwright, Richard (1732-1792)". Dictionary of National Biography (英語). London: Smith, Elder & Co. 1885–1900.: "with the co-operation of a friend of Arkwright, Mr. John Smalley, described as a 'liquor merchant and painter,' the machine was constructed and set up in the parlour of the house belonging to the Free Grammar School."
Hills,R. L.(August 1998).“Kay (of Warrington), John”.InDay, L.;McNeil, I..Biographical Dictionary of the History of Technology(1 ed.).Routledge.p.394.ISBN978-0-415-19399-3."he entered into an agreement with Arkwright to serve him for twenty-one years and was bound not to disclose any details of the machines."
Fitton,R. S.(1989).“Rex v. Arkwright”.The Arkwrights: spinners of fortune.Manchester University Press.pp.130–137.ISBN978-0-7190-2646-1."Mr Justice Buller: it may have the effect of inducing people who apply for patents in future times, to be more explicit in their specifications, and consequently, the public will derive a great benefit from it...If those [Arkright's specifications] are of no use but to be thrown in merely to puzzle, I have no difficulty to say upon that ground alone, the patent is void"
Espinasse,F.(1874).Lancashire worthies.2.Edinburgh and London:Ballantyne (Nabu Press 2010 reproduction).ISBN978-1-146-87257-7.OCLC10973235