The melting and freezing behavior of In metal injected into well characterized porous CPG glasses has been studied as a function of pore size by differential scanning calorimetry. The melting and freezing temperatures of the pore In were found be strongly depressed from the bulk value with decreasing pore size. In the smallest pores, where the melting and freezing signals of the confined and bulk In could be cleanly separated, the latent heat of the pore In was determined, and also found to be strongly reduced from the bulk value. Both of these results are consistent with classical thermodynamics treatments of melting and freezing in small spherical particles and narrow cylinders which predict an inverse pore size dependence of the transition temperature, as well as the latent heat. No evidence for hysteresis effects between melting and freezing was found.