The serie is complete, numbering from 1 to 101, no. 34 is in two parts 34/I and 34/II. There is two copies of the no. 1 and of the no. 101. Since 1972, the Albert National Park is called Virunga National Park. In 1972 "l'Institut des Parcs Nationaux du Congo Belge" became "Fondation pour Favoriser les Recherches Scientifiques en Afrique". Includes bibliographic references