| Description | Manuscript of Karl Pearson's introduction to "Tables of the Probable Error of the Coefficient of Correlation as found by the Product Moment Method" by Karl J Holzinger, in <i>Tracts for Computers</i>, no. 12, edited by Karl Pearson, Cambridge University Press, 1925. Includes a line of verse in Old High German from a ninth century scribe, to include in the last page of the tract. |