German edition of this classic work. It provides general descriptions and explanations of every order of living animal, from the lower animals up to mammals. To be published as a 13 volume set, containing:
Vol 1 - Lower Animals; Vol 2 - Insects; Vol 3 - Molluscs; Vol 4 - Fishes I; Vol 5 - Fishes II and Amphibians; Vol 6 - Reptiles; Vols 7 to 9 - Birds; Vols 10 to 13 - Mammals.