Following the lead of Harvard University, Princeton University announced Monday that it will eliminate its early admissions program next year, doing away with a policy that school officials said puts low-income and minority applicants at a disadvantage. Princeton became the second Ivy League school and the third major American university to announce it is getting rid of early admissions, by which high school seniors apply to schools in the fall-well before the traditional spring deadline. Like most schools with an early admissions policy, Princeton requires successful early applicants to commit to enrolling there. The new policy affects students applying to attend Princeton in the fall of 2008. Early applications for the fall of 2007 are due Nov. 1. Regular applicants face a Jan. 1 deadline.