Smith, Kirstine Manuscript. Thanks Karl for allowing her to work in his laboratory; on newspaper exchange (she planned to send Norwegian papers) and receipt of offprints of her paper in <i>Biometrika</i>; corrections to a paper; about amendments to her proposed paper for her D.Sc.; thoughts on returning to Denmark; thanks for Karl's criticism of her dissertation; asking for advice on giving standard deviations for correlation coefficients or regression coefficients for large, uniform number of siblings across families; turns down post at the Galton Laboratory, encloses algebra; and enclosing notations relating to standard deviations, with pencil calculations by K Pearson. 1916-1920