Principles and practice of agricultural analysis. Volume 1 (of 3), SoilsNote 285 — PART SEVENTH. THE ORIGIN AND ESTIMATION OF OXIDIZED NITROGEN IN SOILS, RAIN AND DRAINAGE WATERS.Reading edition566Zeitschrift für Biologie, Band 9, S. 172.◇Copy noteReturn to PART SEVENTH. THE ORIGIN AND ESTIMATION OF OXIDIZED NITROGEN IN SOILS, RAIN AND DRAINAGE WATERS.