1885 128 p., 1 coloured plate, 1 folded map, disbound (no covers). Published in: Notes from the Leyden Museum.We added 8 other papers by Büttikofer on the birds from Liberia and 4 more on the birds from West Africa and all published in the “Notes from the Leyden Museum”. These include: Zoological Researches in Liberia. A list of birds, collected by Mr. Stampfli near Monrovia (26 p.), Zoological Researches in Liberia. A list of birds collected by the author and Mr Stampfli (48 p., 1 map), Zoological Researches in Liberia. Fourth list of birds (26 p., 1 coloured plate), On a new collection of birds from SW Africa (16 p., 1 coloured plate), On birds from the Congo and SW Africa (36 p., 1 coloured plate), etc. Also added is: A review of the genus Rhipidura (34 p.).
1887 96 p., disbound (no covers). Published in: Notes from the Leyden Museum.We added 8 other papers by Büttikofer on Indonesian birds and all published in the “Notes from the Leyden Museum”. These include: On a collection of birds from Nias (40 p.), On a collection of birds from the Tenimber Islands (11 p., 1 lithographed plate), On a new species of Pericocrotus from Sumbawa (2 p., 1 lithographed plate), On a collection of birds from the islands of Flores, Sumba and Roti (14 p.), etc.
1897-1900 25, 41, 132 p., 5 lithographed (3 coloured) plates, 1 coloured folded map, loose original boards (introduction & Mammal part), disbound, no covers (Bird part). Published in: Notes from the Leyden Museum. The three coloured plates (chromolithographs) were drawn and lithographed by J.G. Keulemans.
Bâle, Ligue suisse pour la protection de la nature, novembre 1946. In-8 de 109 pages, pleine toile rouge imprimée et dorée de l'éditeur.
Orné de 8 planches photographiques hors-textes. Un texte fondateur. C'est grâce à Julian Huxley, directeur de l'UNESCO, que la Ligue Suisse pour la protection de la Nature réussit à organiser cette conférence qui mènera à la création de l'Union Internationale pour la Protection de la Nature, le plus influent et le plus large réseau professionnel consacré à la conservation de la nature. Quelques rares piqûres sont visibles, légère oxydation du pourtour des feuillets, minimes salissures à la reliure.