A combination manometric and volumetric system was constructed for determining the oxidation rates of both solid and molten aluminum. Preliminary experiments indicate that the sensitivity and accuracy of the system are adequate for the present study. A number of runs were made using aluminum foil at 600C. Although the actual oxidation rates were not reproducible, the total amount of oxygen consumed was approximately the same in all cases. The inconsistency in the results confirm previous findings, i.e. oxidation rates depend greatly on the way the surface is originally treated. This is apparently true even in the case of molten aluminum. Aluminum foil, at 600C, gained approximately 5.2 micro-gmsq. cm. Initial experiments with molten aluminum indicate much higher weight gains than those obtained with aluminum foil.