Forty-eight Harvard College seniors were elected to Harvard’s chapter of Phi Beta Kappa on Wednesday, joining 24 of their classmates who were inducted in the spring to the nation’s oldest and most distinguished academic honor society.

For honorees, the announcement came as a surprise due to a modified selection process for the 2024-25 academic year that automatically considered students on the basis of their GPA or a nomination from either their concentration’s director of undergraduate studies or resident dean in lieu of a student application.

Prior to Commencement, a third cohort of students — the “Final Seniors” — will be elected to the chapter. No more than 10 percent of any graduating class can be selected for the honor.

This year’s ‘Senior 48’ consists of students across all 12 undergraduate Houses and the Dudley co-op and a diverse mix of concentrations.

Along House lines, Dunster House and Mather House led the cohort, tying with seven inductees each, followed by Quincy with six.

Computer Science and Mathematics concentrators were most represented — each with nine inductees — followed by Government and Economics with six each.