Report of work during the year September 1974 till September 1975

The laboratory for isotope geology (Amsterdam) is mainly working as a service institute on behalf of geological institutions of the various universities in the Netherlands which carry out numerous projects both in the Netherlands and abroad. In the current year a great deal of new equipment was installed and made operational. This equipment includes a scanner for the mass spectrometer which was developed at the laboratory and which can be linked with a teletype in aid of data processing by computer. Chemical separation methods were refined to meet the requirements of lower detection limits. Mineralogy and x-ray analysis are mentioned. International cooperation is surveyed. A list of analysed samples is added as well as a list of publications. One dissertation was completed in this year