2Mice. Mice were exposed in individual compartments of decompression chambers at temperatures constant to +0.25”C. and pressures controlled to rfr2 mm. Hg. Body temperatures were measured by copper-constantan thermocouples in the rectum. Mice, fasted 4-6 hours, were placed in the decompression chambers for 30 minutes to allow temperature equilibrium and then the pressure was reduced gradually, ...