Stochastic Analysis and Applications : Proceedings of the International Conference held in Swansea April 11–15 1983 Newtonian diffusions and planets with a remark on non standard Dirichlet forms and polymers The equivalence of ensembles in statistical mechanics The uniqueness of regular DLR measures for certain one dimensional spin systems Generalised Weyl Operators One — dimensional stochastic differential equations involving the local times of the unknown process Time changes of Brownian motion and the conditional excursion theorem On square root boundaries for Bessel processes and pole seeking Brownian motion Distributional approximations for networks of quasireversible queues Some geometric aspects of potential theory BM(3) and its area integral £ ×d The unique factorisation of Brownian products Some integral equalities in Wiener Hopf theory A differential equation in Wiener Hopf theory.