One of the most active fields in experimental chemistry is that of organic catalysis. Several reactions of this type are of interest not only to the chemist, but also, because of their development into reactions of industrial importance, to the sympathizer with chemical endeavors. The methanol synthesis seems to have been rather completely outlined in the available literature. A survey of this reaction is presented from the time of Patari to the present, as well as a consideration of the synthesis of higher alcohols from carbon monoxide and hydrogen, the high-pressure hydrogenation of coal and petroleum, and the vapor phase oxidation of benzene to maleic anhydride, of naphthalene to phthalic anhydride, and of anthracene to anthraquinone. Organic catalysis, especially those reactions involving the use of high pressure, is one of the most important practical fields of the day and numerous developments along this line may be expected in the near future.