The nomenclature of diseases drawn up by a joint committee appointed by the Royal College of Physicians of London. (Subject to decennial revision).

"The first authoritative source of disease terminology, with the names in English, Latin, French, German and Italian. Standardization of disease terminology was necessary for accurate recording and study of mortality, etc. The Committee was greatly aided by William Farr. Joseph Dalton Hooker revised the botanical names. Digital facsimile from wellcomecollection.org at this link.