Soils, their formation, properties, composition, and relations to climate and plant growth in the humid and arid regionsNote 146 — Chapter XX · SOILS OF THE ARID AND HUMID[125] REGIONS.Reading editionLandw. Presse, 1900, No. 52; ibid. 1901, Nos. 23 and 24.◇Copy noteReturn to CHAPTER XX. SOILS OF THE ARID AND HUMID[125] REGIONS.