Soils, their formation, properties, composition, and relations to climate and plant growth in the humid and arid regionsNote 156 — Chapter XXI · SOILS OF ARID AND HUMID REGIONS (Continued).Reading editionOn the Composition of Indian Soils. Agr. Ledger, 1898, No. 2.◇Copy noteReturn to CHAPTER XXI. SOILS OF ARID AND HUMID REGIONS (Continued).