Seniors at Davidson who maintain an overall average of 3.6 or above on at least eighteen graded, countable courses are ordinarily considered for election, which is by ballot of faculty members and staff of the local chapter.  Election to membership, however, is not automatic on the attainment of a certain grade average.  In accordance with the constitution of the National Society, students elected must have qualifications of "high scholarship, liberal culture, and good character." Not more then 12 1/2 percent of the senior class may be elected.  Elections take place during the spring semester.