The scheme of the classification of soil groups by Prof. STREMME (Danzig), which was presented to the last INTERNATIONAL. CONGRESS OF SOIL SCIENCE (1935), is interpleted in the preceeding paper with some critical and many explanatory notes. The soils are divided by him into the following large groups : - I. Vegetation soil type (Vegetationsbodentypen) II. Wet soil types (Nassbodentypen) III. Rock soil types (Gesteinsbodentypen) IV. Relief soil types (Reliefbodentypen) V. Artificial soils (Kunst1iche Boden) The protest of Prof. PRASOLOV (Leningrad) against this p1an, and the reply of Prof. STREMME is briefly mentioned. The former author puts stress on the morphological classification, and the latter on the genetical one. It seems to the present writer that the dispute between them will be a struggle from the different standpoints. The soils can reasonably be classified in a certain number of special ways. It will not unfrequently be possible that the doubtful case arises whether the soil in question is to be grouped into one or another type according to Prof. STREMME'S system. The wet soils are classified by him into the following five types : - A Inorganic wet soi1s (1) Valley-forest soils (Auenwaldboden) (2) Swamp-forest soils (Bruchwaldboden) (3) Marsh soils (Marschboden) B. Organic wet soils (4) Moor-margin soils (Anmoorige Boden) (5) Moor soils (Moorboden) The valley-forest soi1s occur in the elevated parts of river valleys or alluvia1 fans. The most of them are to be regarded as the "formerly wet soils" as was pointed out by v. Bulow, and are tending to change remarkably towards the brown soils or chernosems since the deforestation in past times. It is doubtful to the present writer whether such a soil can still be called the wet forest soil when the alteration far advanced, losing the majority of the original characteristics. As a whole, we are very thankful to Prof. STREMME who gave us many valuable suggestions for the examination and classification of the alluvial soils. As the supplements, the following subjects are given : (1) the writers opinion about the nomencrature of soil types, preferring the simpler morphological names to the more complex genetical ones, (2) the criticism of Prof. POLYNOV (Moscow) against the traditional russian school of soil research, and (3) the activity of the present german soil scientists who are reexamining the older methodology and terminology.