User talk:Orkneyschools

September 2013
Hello, I'm Excirial. I noticed that you made a change to an article, Visible spectrum, but you didn't provide a source. I’ve removed it for now, but if you’d like to include a citation to a reliable source and re-add it, please do so! If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Excirial ( Contact me, Contribs ) 19:47, 17 September 2013 (UTC)