An erratum: effective particle size as determined by the initial slope of the Fourier-coefficient-against-order curve for X-ray diffraction line profiles

Certain errors in a previous publication by the present authors [Mitra & Mathur (1975), J. Appl. Cryst. 8, 543-544] on the interpretation of the initial slope of the Fourier-coefficient-against-order curve for X-ray diffraction line profiles have been pointed out and corrected. The effect of Cauchy strain distribution on determination of particle size has also been investigated.