A short biography of D.C. GEIJSKES is followed by a list of his scientific publications (1928-1971), a great number of which are devoted to Odonata, particularly to those of South America. It is a pleasure to have the opportunity to write about a sixty-five year old scientist of whom much can still be expected, about a creditable entomologist who has many times operated outside his own field with great success, about an odonatologist who is not only one of the greatest authorities on the neotropical dragonfly fauna, but also on the Surinam interior.