ed. by J. L. Franklin. ed. by R. W. Cahn. ed. by V.I. Arnold. ed. by B.C. Brookes. ed. by B. C. Muddle. ed. by G.W. Gorsline. ed. by H. V. Boenig ed. by J. E. Burke. ed. by L. A. Hill. ed. by R. P. Uhlig