Incoming correspondence to George Engelmann from Georg Albano von Jacobi, for 1855-1871. The correspondence relates to the recommendation of polychrome lithograph to illustrate Engelmann's work on cacti. Discussion of the seeds of cacti, with reference for a systematic division of the family. Hybridization attempts of Mr. Schaefer of cacti. Oberservations and descriptions of various cacti and agave. Compares the U.S. civil war with unrest in Prussia. Comments on German politics. Dispersion of his plant collection due to illness and retirement.

Folder contains original letters.