Letters from the Cambridge University Press Letters to Karl Pearson. Letter dated December 1926 encloses revised copy of A J Thompson's plates for "Logarithmetica Britannica Part 8". Letter dated April 1936 encloses two letters from Henrie (sic) Briggs, being his last Will and Testament, and an appendix to the Will, both dated 16 November 1629. 7 Dec 1926