1674 Ind. Eng. Chem. Res., Vol. 30, No. 7, 1991
ADDITIONS AND CORRECTIONS Comments on 'Model for Hold-Up Measurements in Liquid Dispersions Using an Ultrasonic Technique" [Volume 29, Number 10, page 21701. C. Tsouris and Lawrence L. Tavlarides* Page 2171. The last term is missing from eq 13b. The equation should read