Item is a journal containing lists of materials, expenses and books, and well as miscellaneous notes and diary entries, including copies made by W.J. Proudfoot in 1841 of earlier pencilled notes by Dinwiddie, and a loose letter from Mr Ashton requesting the loan of a book.
Series contains notebooks kept by James Dinwiddie in which he made notes and observations about topics in natural philosophy and politics, recorded meteorological and chronological observations, catalogued his books, and wrote about his and others' experiments.
Item is a book kept by James Dinwiddie containing notes about lectures at the Royal Institution (April 21, 1810 - May 26, 1811). Dinwiddie notes that he did not attend the first two lectures.
