Talk:National Carbon Company

Update External Link
The link for reference 6, Salvetti, Carlo (2001). "Fermi's Pile". In C. Bernardini and L. Bonolis (ed.). Enrico Fermi: His work and legacy. New York N. Y.: Springer Verlag. is to a reference that has been removed due to copyright violation. I have removed that as a link, leaving the PID, and added an interesting link to a fascinating set of letters between Leo Szilard and the National Carbon Company expressing much concern about critical specifications for purity of their proposed carbon contract. Hansonrstolaf (talk) 00:21, 8 May 2022 (UTC)

Update External Link
I am the program coordinator of the ACS-National Historic Chemical Landmarks program. I have updated the references to ACS-NHCL web content, as those pages are being replaced. KLindblom (talk) 21:09, 7 June 2012 (UTC)

External links modified (February 2018)
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 * Added archive http://arquivo.pt/wayback/20160515005823/http://portal.acs.org/portal/PublicWebSite/education/whatischemistry/landmarks/drycellbattery/index.htm to http://portal.acs.org/portal/PublicWebSite/education/whatischemistry/landmarks/drycellbattery/index.htm

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