Sep 26, 2024
Eduard Gübelin. Scanning electron micrographs of opals, 17150x, ca. 1975.
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Eduard Gübelin. Scanning electron micrographs of opals, 17150x, ca. 1975.
Unknown author. Fungi, Chibraria vulgaris. Capillitium, no date.
Jaag, Otto; Hartmann, Max. Untitled, 1921 - 1935.
Photographisches Institut der ETH Zürich. Photomicrograph of bone cross section, 1949.
Jaag, Otto; Hartmann, Max. Untitled, 1921-1935.