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A 22m thick glacial, lacustrine sequence was sampled for palaeomagnetic analysis with the main purpose to see if the sediment was of inverse polarity. It turned out that all 34 samples taken showed reverse polarity and the sequence may thus be referred to the Matuyama Chron, moving the hitherto assumed maximum age for glacial deposits in Denmark considerably back in time, from the Elster Ice age approximately 350-400ky to now at least 781ky. From the directional data a VGP close to the South American southernmost tip was calculated and a VGP path moving from there towards the west and up northward east of New Zealand. This may indicate the beginning of a pole transition, probably the Matuyama-Brunhes.

Coincidences between high energy light particles emanating from 35A MeV 12C +C, Al and Cu collisions show a significant in-plane excess. This excess increases with the mass of the coincident particles and decreases with the mass of the target. Momentum conservation effects within a participant region reproduce the main features of the observed correlations. Data from 85 A MeV reactions show similar trends and are also well described by the same momentum conservation effects.

Large-angle light particle correlations in 12C + 12C and 12C + 197Au collisions at 85A MeV are observed. An excess of pp correlations in the particle-particle scattering plane is observed for both reactions whereas for dd correlations it exists only for 12C + 12C reactions. Quasi-elastic scattering and emission from a sequentially recoiling thermal source explain the gross structure — but hardly all details - of the pp correlation functions.

Two gamma -rays of 129.2 and 288.4 keV observed in the beta -decay of 55 ms /sup 100/Rb are interpreted as representing the two lowest transitions in the /sup 100/Sr ground-state rotational band. The energy ratio of the two levels, 3.23, approaches the value for a rigid rotator. The half-life of the 2/sup +/ state is 5.15+or-0.20 ns corresponding to a deformation parameter epsilon of 0.29. The theoretical implications of these results are discussed on the basis of a Nilsson-Strutinsky calculation. (10 refs).

Heavy ion collisions at intermediate energies are reviewed in terms of the present understanding of some selected experimental results from the CERN synchrocyclotron.