One of the major issues in high temperature superconductivity is the nature of the so called pseudogap phase. A related question is whether the pseudogap controls the evolution of the collective magnetic excitations with doping and temperature. The purpose of the present experiments is to help answer these questions by measuring the temperature dependence of the the magnetic excitations in overdoped La2-xSrxCuO4. The key object is to determine how the magnetic response changes with temperature for this composition. This should allow us ultimately to determine the controlling fixed point in the high-Tc phase diagram. We already have data at T=6 and T=300K see a dramatic change between these to temperatures. Clearly more temperatures are required.