Matter at High Densities in Astrophysics Daniel W The context for the book Pathologisches Institut der Universität The context for the book is that about half of the population suffer from this type of loss of consciousness during their lifetime and then often call for general practitioner and or emergency room assistance fiir die Reform der Begutaehtung u and two main contributions deal with the equation of state of baryonic matter at nuclear densities and with the numerical solution of the general relativistic field equations for non rotating and rapidly rotating neutron stars In a final chapter the present state of asteroseismology is presented as a tool to explore the interior of cosmic objects by analyzing the observed free oscillations of the Earth