DILWORTH, William J., M.A. (T.C.D.) Educ.: Santry School, Dublin; Trinity College, Dublin. Graduated with First Class Honours in Mathematics in Dublin University, 1886; Professor in the Training College of the Commissioners of National Education, 1894; Principal of the College, 1901; Secretary to Board of National Education from 1903; b. 1863; m. 1895, Mary Tempe Kildahl, and has issue one son and three daus Pubns.: New Sequel to Euclid. Recns.: lawn tennis and golf. Res.: 23 Palmerston road, Rathmines, Dublin. Club: University, Dublin.