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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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ERIC Number: EJ072102
Record Type: CIJE
Publication Date: 1972
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
Werner, Kekule, and the Demise of the Doctrine of Constant Valency
Kauffman, George B.
Journal of Chemical Education, 49, 12, 813-817, Dec 72
An historical investigation into the theory of valency as developed in the course of the second half of the 19th Century. Opposing views on one aspect of valency are examined and contrasted. (DF)
Descriptors: Chemistry, History, Physical Sciences, Resource Materials, Science Education, Science History, Sciences
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A
Identifiers: N/A