Scope and Contents This collection is divided into four (4) series. Series 1: Correspondence contains three of Darlington’s four letterbooks: Volume I (1805-1837), Volume II (1837-1845), and Volume IV (1852-1862). [Note: Volume III (1845-1852) is in the collection of the Chester County Historical Society, West Chester, PA]. The letters include those to several U. S. Presidents and political figures, leading American and European botanists, and many local historical figures. Indexes...