Talk:colourimetry

Spelling
Source for this spelling? Cannot find a credible one on the Internet.
 * Here are 651 books results. Some of those look more or less legit. -  21:17, 22 January 2011 (UTC)
 * And that's how it was spelled in my young days when I was an analytical chemist. SemperBlotto 22:01, 22 January 2011 (UTC)