In N03 1 and 2 of Biometrika, Vol. IV, Prof. Pearson referring to my paper „Skew frequency curves in biology and statistics” *) ; 1st- maintains that in my theory I have followed Edgeworth without acknowledging his priority; 2nd- refutes my or Edgeworth’s theory. As to the first point : I must plead guilty in part and I offer Prof. Edgeworth my apologies. I confess to have overlooked his papers. I may perhaps adduce as an attenuating circumstance that these papers have been also overlooked in the bibliographies of both Prof. Luldwigand of Davenport, the only bibliographies on the subject with which I am acquainted.