Letters about <i>Logarithmetica Britannica</i> Correspondence, primarily between the Cambridge University Press (CUP), Karl Pearson and Alexander John Thompson, about the publication of Thompson's <i>Logarithmetica Britannica Part 9: being a standard table of logarithms to twenty decimal places</i>, which was published by the CUP, issued by the UCL Biometric Laboratory and for which Karl Pearson wrote the Prefatory Note. 1924