Top and perspective views of a graphic representation of the periodic table of chemical elements in the style of a helix and space lemniscate with an additional loop for the rare earth elements. This table was originated by Karl Schirmeisen in 1900 and and classified by Mazurs as Type IIIA3-2 in his seminal work Types of Graphic Representation of the Periodic System of Chemical Elements (1957). This illustration appears as Figure 69 on page 136 of Mazurs' 1957 publication.
Schirmeisen, Karl, and Edward G. Mazurs. “Periodic Table in Style of Helix and Space Lemniscate with Additional Loop for Rare Earth Elements.” Glass (material), circa 1900–1957. Edward G. Mazurs Collection of Periodic Systems Images, Box 2. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/76537198c.
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