Scientific and General Correspondence, 1849-1908 30 items Unit ID: Section I Date: 1849/1908 Physical Description: 30 items
Scientific notebooks, papers and correspondence, 1st Series, 1855-1885 16 items Date: 1855/1885 Physical Description: 16 items
Scientific notebooks, papers and correspondence, 2nd Series, 1840-10 October 1894 99 items Date: 1840/1894-10-10 Physical Description: 99 items
Supplementary Letters and Personal Papers, 1845-1849 1 item Unit ID: Sections II-III Date: 1845/1849 Physical Description: 1 item