Chapter Xxiv. Recognition of the Character of Soils From Their

Native Vegetation. Mississippi. “ XXV. Recognition of the Character of Soils from their Native Vegetation. United States at large, Europe. “ XXVI. Vegetation of Saline and Alkali Lands.

TABLE OF CONTENTS.

PREFACE xiii

INTRODUCTION, xxiii.—Definition of Soils, xxiii.—Elements Constituting the Earth’s Crust, xxiii.—Average Quantitative Composition of the Earth’s Crust, xxiii.—Clarke’s Table, xxiv.—Oxids Constitute Earth’s Crust, xxiv.—Elements Important to Agriculture; Table, xxv.—The Volatile Part of Plants, xxvi.