uploaded by Grimlock 07:44, 19 September 2006 (UTC) to commons
Licensing
It is perceived this images may fall on public domain. There are not signs of copyright.
This file is in the public domain, because The following image was taken by students of the University of Siegen during the class of General chemistry.
In case this is not legally possible: The right to use this work is granted to anyone for any purpose, without any conditions, unless such conditions are required by law.
Please verify that the reason given above complies with Commons' licensing policy.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.