An émigré Physician: Dr David (Didier) Roth,Homoeopath,Art Collector,and Inventor of Calculating Machines

Lesky E. The Vienna Medical School of the 19th Century. Baltimore: Johns Hopkins University Press, 1976

Obituary: Roth David M.D. Homoeopathic World 1886; 21: 85–8

Kaschauer Zeitung, 12 January 1886: 48; Molnár B . Kassa orvosi története, Kassa, 1944

Tutko J. Szabad Királyi Kassa Városának Történelmi Évkönyve. Kassán, 1861

Obituary (op. cit. ref. 2)

Nicholls PA . Homoeopathy and the Medical Profession. London: Croom Helm, 1988. 259

Campbell A. The Two Faces of Homoeopathy. London: Robert Hale, 1984

Griesselich L. Why am I a homoeopathist? Homoeopathic Times 1849; 1: 269–72

Roth D. Miscellen von Dr Roth in Paris. Hygea 1838; 7: 439–51

Roth D. Beobachtungen an Kranken. Hygea 1838; 7: 210–15, 456–64

Roth D (op. cit. ref. 9)

Roth D. Positives Wissen. Hygea 1843; 18: 71–84, 170–85

Ibid.

Roth D. Pharmacological studies. British Journal of Homoeopathy 1861; 19: 618–36

Roth D. Animalcules in diseased blood. British Journal of Homoeopathy 1864; 22: 220–7

Tischner R. Geschichte der Homöopathie. Leipzig: W Schwab, 1939

Ocagne M. Le Calcul simplifié (2nd edn). Paris: Gauthier-Villars, 1905

Wertheimber DI . Calculating machines, applicable to wheel-work. British patent 9616, 1843

Marguin J. Histoire des instruments et machines à calculer. Paris: Hermann, 1994

Johnston S. Making the arithometer count. Bulletin of the Scientific Instruments Society 1997; 52: 12–21; Olivier T. Rapport fait … sur des machines a calculer présentées par le docteur Roth … Bulletin de la Société d'Encouragement Pour l'Industrie Nationale 1843; 471: 411–25

Wertheimber DI (op. cit. ref. 18)

von Wurzbach C . Biographisches Lexikon des Kaiserthums Österreich. Wien: WK Hof- und staatsdruckerei, 1874

Lugt F. Les Marques de collections de dessins et d'estampes. Amsterdam: Vereenigte Drukkerijen, 1921

Obituary (op. cit. ref. 2)