Top and perspective views of a graphic representation of the periodic table of chemical elements in the style of a helix with three sizes of revolutions. This table was originated by Henry Bassett in 1892 and classified by chemist Edward G. Mazurs as Type IA3-1 in his seminal work Types of Graphic Representation of the Periodic System of Chemical Elements (1957). This illustration appears as Figure 34 on page 112 of Mazurs' 1957 publication.
1892 (Original design), Circa 1957 (Date attributed to slide)
Bassett, Henry, and Edward G. Mazurs. “Periodic Table in Style of Helix with Three Sizes of Revolutions.” Glass (material), circa 1892–1957. Edward G. Mazurs Collection of Periodic Systems Images, Box 2. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/4j03d031q.
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