A Conference on Biology and Civil Engineering will be held at the Institution of Civil Engineers during September 21–23. This conference is intended primarily for members of the Institution and others engaged in civil engineering Work where the problem of the effect of vegetation is an important factor. Papers Will deal with research and other work carried out not only in Great Britain, but also in New Zealand, South Africa, Holland and the British West Indies. Among the topics for discussion are : causes, effect and prevention of soil erosion ; effect of vegetation on drainage and floods ; effect of vegetation in stabilizing artificial slopes ; use of vegetation to stabilize sand dunes; effect of vegetation on the settlement of roads and structures ; algal growth and engineering design. All meetings will be held at the Institution of Civil Engineers, from which further particulars can be obtained.