part 1 http://www.dailymotion.com/video/x2j5w1v_l-alchimie-veritable-science-1-3_creation
part 2 http://www.dailymotion.com/video/x2j5xgu_l-alchimie-veritable-science-2-3_creation
autre doc sur l'alchimie http://www.dailymotion.com/video/x2j94ji_le-secret-des-alchimistes_creation
