Unpublished paper, on endellione by unknown author The author discusses proposed names for endellione [bournonite] and arguments for and against these names, as well as different types of bournonite. He then writes about the external and crystallographical characteristics of bournonite. Includes a table showing the modification of primitive crystal of bournonite and its varieties, as well as two pages of figures. An English translation of this paper is found at AP/7/1a. Subject: Mineralogy Read to the Royal Society on 4 May 1809. [1809]