The presentations were made during the course of the International Symposium on Analytical Chemistry held at the University of Birmingham (UK) from 21st to 25th July 1969. Organized by the Midlands Section of the Society for Analytical Chemistry, under the patronage of the International Union of Pure and Applied Chemistry, the symposium coincided with the sixtieth birthday of Prof. R. Belcher. The scientific programme was planned to reflect his many interests in the analytical field.