Page:An introduction to Combinatory analysis (Percy MacMahon, 1920, IA Introductiontoco00macmrich).djvu/12

vi considerable intervals there is but a mere resemblance. The subject-matter of the book shews I believe that the algebra of symmetric functions and an important part of Combinatory Analysis are beautifully adapted to one another, and if I have succeeded in making that clear to the reader I shall be satisfied that the object of the book has been attained.

My grateful thanks are due to Professor J. E. A. Steggall, M.A. for much helpful criticism during the composition of the book.

P. A. M.

February, 1920.