Contains among other things: Agricultural Academy Bonn-Poppelsdorf Agricultural University Berlin Gärtnerlehranstalt Berlin-Dahlem Chamber of Agriculture of the Province Brandenburg University Halle

Études des plantations et analyses de sol dans les environs du Mont Cameroun. - Préparations du voyage d'étude du Prof. Dr Wohltmann, Académie de l'agriculture de Poppelsdorf près de Bonn, 1896nn

Contains among other things: M. Koernicke, On the Cultural Possibility of Rotang (reprint), 1908

Contains among other things: H. Loehnis. The European colonies. Contributions to the Critique of German Colonial Projects. Bonn 1881