2007-03-11 Urbain-Jean-Joseph Le Verrier * http://en.wikipedia.org/wiki/Urbain_Le_Verrier http://www.britannica.com/eb/topic-333461/Urbain-Jean-Joseph-Le-Verrier http://www.nikkei-bookdirect.com/science/page/magazine/0503/neptune.html?PHPSESSID=3c1de183660b26484b215c1f9e5eaacf