User talk:Bull13dog

December 2013
Hello, I'm Jack Greenmaven. I wanted to let you know that I undid one or more of your recent contributions to Bioconjugation because it did not appear constructive. If you would like to experiment, you can use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Greenmaven (talk) 01:27, 2 December 2013 (UTC)