Copy letter from Karl Pearson, University College, London, to [Philip Arthur Ashworth?] Pearson wrote to Sir Mackenzie Wallace late last year or early this, asking to be relieved of his promise to write articles [for the Encyclopaedia Britannica] as he had not time to do them and they would not be ready for six to nine months. He understood that Wallace had agreed to this and Pearson's time is now arranged until the end of October, so that he could not even write the one article his correspondent referred to. His own theory needs to be assessed by experiments, and he recommends giving the article to a believer in existing theory, such as Professor [Francis Ysidro?] Edgeworth or Mr. Bushey. He cannot pick up the threads of the other two articles. 16 June 1900