Early in his teaching days at Cambridge, Professor van der Loon became interested in collation, textual research, and bibliographical studies.
早在劍橋講授漢書時，龍彼得對漢書藝文志「辨張學術、考竟源流」的方式就非常心儀；對校讎學、書目學、版本研究等費時費心思的學科，龍彼得也始終興趣不移。