Cite this as: Lauren Kassell, Michael Hawkins, Robert Ralley, John Young, Joanne Edge, Janet Yvonne Martin-Portugues, and Natalie Kaoukji (eds.), The casebooks of Simon Forman and Richard Napier, 1596–1634: a digital edition, https://casebooks.lib.cam.ac.uk/search?f1-document-type=Case%3A%3AEntry;f10-querent=John%20Langford%20%28PERSON53344%29;f11-treatment=Yes;f2-querent-age-band=060-069;f3-date=1630-1639;f4-practitioner-is-querent=No;f5-practitioner-is-astrologer=Yes;f6-info=Urine;f7-info=Astrological%20chart;f8-practitioner=Other%3A%3AMr%20Ralph%20Ruddle%20%28PERSON57997%29;f9-patient-age-band=060-069, accessed 29 June 2024.