The medical tracts contain a series of 129 bound volumes of pamphlets relating to medical matters. These matters include, but are not limited to, addresses from the Royal College of Physicians, along with new research and hypotheses about ailments, symptoms, consequences and cures. There is also a small collection of 'History of Medicine' quarterly magazines, and the occasional instance of a stand alone pamphlet, such as 'Four Centuries of Anatomy,' by Frederick Pybus, A professional biography of William Harvey, and the '1st spasmodic cholera epidemic in York,' published by the Borthwick Institute, York.