Microbial population dynamics Kinetics of double substrate limited growth F.B. Bader Time delays in chemostat models N. MacDonald Lag phases and transients J.P. Barford N.B. Pamment and R.J. Hall Growth in a changing environment A.M. Pickett Growth of fungi J.I. Prosser The growth dynamics of unicellular algae A. Cunningham and P. Maas