http://chronicle.com/img/photos/biz/bottomline-45.pngBy Don Troop. Lee C. Bollinger, president of Columbia University, announced in a letter to alumni on Thursday that the institution had collected $6.1-billion in a seven-year capital campaign that concluded on December 31. It was the biggest sum raised by an Ivy League institution and the second largest in higher education, behind Stanford University’s $6.2-billion in a campaign that ended in 2011. Harvard University announced a $6.5-billion campaign last fall. More...