• Lanfrank's "Science of Cirurgie", Early English Text Society, 1894. https://books.google.com/books?id=2ms6AQAAMAAJ&pg=PA343&dq=sanguis+draconis&hl=en&sa=X&ved=0ahUKEwiK7MiaofXLAhXG1R4KHaNTBCc4FBDoAQhXMAg#v=onepage&q=sanguis%20draconis&f=false
• The Works of Francis Bacon vol IV, Hurd and Houghton 1869 https://books.google.com/books?id=cjLXAAAAMAAJ&pg=PA444&dq=sanguis+draconis&hl=en&sa=X&ved=0ahUKEwiK7MiaofXLAhXG1R4KHaNTBCc4FBDoAQhSMAc#v=onepage&q=sanguis%20draconis&f=false
• The Seven Books of Paulus Aegineta vol III, Sydenham Society 1857 https://books.google.com/books?id=7MtLAAAAcAAJ&pg=PA171&dq=sanguis+draconis&hl=en&sa=X&ved=0ahUKEwiK7MiaofXLAhXG1R4KHaNTBCc4FBDoAQgkMAA#v=onepage&q=sanguis%20draconis&f=false
• Eastaugh, Nicholas, Valentine Walsh, Tracey Chaplin, and Ruth Siddall. Pigment Compendium. New York: Routledge, 2013. https://books.google.com/books?id=MYAABAAAQBAJ&pg=PA149&dq=sanguis+draconis&hl=en&sa=X&ved=0ahUKEwiEl-qFofXLAhXG9x4KHSobBi84ChDoAQhHMAY#v=onepage&q=sanguis%20draconis&f=false
• Hill, John. A History of the Materia Medica. London: Hitch and Hawes, 1751. https://books.google.com/books?id=enWnuv3r08MC&pg=PA725&dq=sanguis+draconis&hl=en&sa=X&ved=0ahUKEwjqgdrxoPXLAhXEuB4KHc9kAtEQ6AEILDAB#v=onepage&q=sanguis%20draconis&f=false
• Renou, Jean de. Les Oeuvres pharmaceutiques du Sr Jean de Renou. Trans ed Louys de Serres. Lyon: Antoine Chard, 1626 (see esp p.361) http://www.bvh.univ-tours.fr/Consult/index.asp?numfiche=252
• Bourgeois, Louise, Observations Diverses https://books.google.com/books?id=RNtEAAAAcAAJ&printsec=frontcover&dq=louise+bourgeois+observations+diverses&hl=en&sa=X&ved=0ahUKEwii4O6muofMAhVLkx4KHXHSCUIQ6AEILTAA#v=onepage&q=louise%20bourgeois%20observations%20diverses&f=false