Statistical variance of line-profile parameters. Measures of intensity, location and dispersion: corrigenda

An error has occurred in the Abstract of the paper with the above title (Wilson, 1967). In the last line but one `fixed-count timing' should read `fixed-time counting'. A superscript 2 has been omitted from equation (93), p. 895. This equation should read σ²_ft(Am) = ^Σ_j[cos(2πmj/R) − Am]²Ij.