Hessels, Jan Hendrick Letters to Pearson regarding his research into mediaeval German literature; disputes with Bradshaw and Martineau over the attribution of authorship with regards to a German mediaeval text; the origins of the "Rechtbuch"; translation of German poetry into English; asking Pearson to carry out research in the British Museum on his behalf; and on palaeographical examination of Albrecht Dürer's letters. 1883-1887