Universitätsbibliothek Braunschweig - Digitale Bibliothek

Universitätsbibliothek Braunschweig - Digitale Bibliothek.
The Universitätsbibliothek Braunschweig maintains a free digital library primarily on rare books on pharmacy and botany (but including a few journal runs) located at http://www.digibib.tu-bs.de/.
This repository contains the full-text of at least one German periodicals from the 19th century: the Mittheilungen aus den Verhandlungen der Gesellschaft naturforschender Freunde zu Berlin (1836-1838).
To locate the full-text of the above-mentioned periodical, look for it in the Pharmacy area by title.
There is a link to the Universitätsbibliothek Braunschweig - Digitale Bibliothek from the following history page in the Repertorium Veterrimarum Societatum Litterariarum (Inventory of the Oldest Scholarly Societies):

Scholarly Societies Project