McIlvaine, William, 1786 - 1854 (American businessman, member of American Philosophical Society, and amateur geologist. Organiser of Lyell's Lowell Lectures, and correspondent with Mary Lyell, based Burlington and Philadelphia)

Scope and Contents This notebook contains Charles Lyell's notes from 26 April 1846 to 4 May 1846 [the stated end date is inferred from the start date of the following notebook]. The Lyells returned to Philadelphia, following an absence of several months, at the end of April. Charles left his wife with friends at Philadelphia and traveled to Richmond, Virginia to resume his examination of the coal fields, ‘left half-finished in December last’. He made excursions to coal mines north and south of Blackheath,...