Workdiary 17 ('A Philosophicall Diary begun Sept. the 20th')

Content: Medical and chymical recipes from the late 1650s; sources include Joachim Polemann and Henrik Le Roy

General Information

• Creation: September-October, late 1650s
• Hands: uncertain hand (all entries) Robert Boyle (in-line addition in entry 7)
• Source: Royal Society, Boyle Papers 26, fols. 1-2
• Languages: English (17 entries)
• Length: 17 entries, of which 4 are numbered
• Format: Foolscap sheet folded in half to form four sides on which the entries were recorded; this sheet was then folded again once vertically and twice horizontally (in thirds). The entries end halfway down the third side and the fourth side (fol. 2v) is left blank.