Soils, their formation, properties, composition, and relations to climate and plant growth in the humid and arid regionsNote 132 — Chapter XX · SOILS OF THE ARID AND HUMID[125] REGIONS.Reading editionBull. Agr. Coll. Tokyo, Vol. V., Nos. 2 and 4.◇Copy noteReturn to CHAPTER XX. SOILS OF THE ARID AND HUMID[125] REGIONS.