process. Similarly direct in its argument is the chapter on determinants, its object being the solution of non-homogeneous equations and the necessary evaluation of determinants. I am under obligations to many friends and colleagues for suggestions, but especially to Professor P. F. Smith, who has read the book both in manuscript and proof and whose numerous suggestions have been invaluable. NEW HAVEN, CONNECTICUT August, 1905 37. H.C.F. of Two Polynomials . 38. Euclid's Method of finding the H.C.F. |