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The INTERNET Database of Periodic Tables

There are thousands of periodic tables in web space, but this is the only comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Mark R. Leach Ph.D.

Use the drop menus below to search & select from the more than 1300 Period Tables in the database: 

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Year:  1961 PT id = 1251, Type = formulation spiral

Circular Periodic Chart of The Elements

Chris R. Hagness writes:

"I own a wall chart that doesn't seem to be in your database of periodic tables. It's a circular 'periodic chart of the elements' published by Dickinson Brothers, Inc. in USA, distributed by American Seating, copyrighted 1961 by H. Edmund Matthews, Jr.

"I have never been able to find any information on this on the internet. Not on Edmund Matthews, no old catalogs from American Seating, no reference to this particular circular periodic table. I've never seen another of these anywhere, and I've been looking on and off for 10 years. I can't imagine this would have been a popular selling item. If you have any info, that would be appreciated!"

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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