Toward the end of the next week Rachel came in to dinner late and in high spirits. "I've had such a fine walk!" she exclaimed. "Hester Gulick and I went to the bridge, and on the way back we overtook a senior named Janet Andrews. She is such fun. She'd walked down-town with Professor Hinsdale. He teaches psychology, doesn't he? They seem to be very good friends, and he told her such a funny thing about the fifty-freshmen story. How do you suppose it started?"