FIGURE 4 in Nomenclatural studies toward a world catalog of Diptera genus-group names. III. Christian Rudolph Wilhelm Wiedemann

FIGURE 4. Page from letter of 9 August 1829 from Wiedemann to the publisher Schulz in Hamm. This letter appears to concern the content and arrangement of Meigen's illustrations for the Aussereuropäische zweiflügelige Insekten. Unfortunately, it has proved to be almost illegible, even for our German colleagues, which clearly reflects the decline in Wiedemann's faculties. Personal collection of N.L. Evenhuis.