(Band 2): Grundriss einer allgemeinen Naturgeschichte der Radiolarien
An 1887 German natural history plate book on radiolarians, a group of single-celled marine plankton, by Ernst Haeckel, held by Heidelberg University Library. The plates are numbered engravings of microscopic skeletal forms, shown in detail for specialist zoologists. The pictures offer a designer dense, repeating patterns of perforated lattice shells, spines and radial symmetry, useful for organic textures, lacework motifs and botanical-style ornament.
