| Description | [12] letters from Dr Ulrich Maschwitz, Zoological Institute, Frankfurt, West Germany and Zoological Institute, Fachbereich Biologie, J.W. Goethe University to Dr Klaus Sattler, British Museum (Natural History) and [8] from Dr Sattler. [2] letters addressed to Dr K Dumpert, Battelle Institute, Frankfurt, West Germany from Dr Sattler including photographs. [3] letters from Dr Dumpert |