12 Newbury Street, Boston,
December 22, [1898]...I suppose Mr. Keith writes you the work-a-day news. If so, you know that I have finished all the geometry, and nearly all the Algebra required for the Harvard examinations, and after Christmas I shall begin a very careful review of both subjects. You will be glad to hear that I enjoy Mathematics now. Why, I can do long, complicated quadratic equations in my head quite easily, and it is great fun! I think Mr. Keith is a wonderful teacher, and I feel very grateful to him for having made me see the beauty of Mathematics. Next to my own dear teacher, he has done more than any one else to enrich and broaden my mind.
