Principles and practice of agricultural analysis. Volume 2 (of 3), FertilizersNote 123 — PART FIRST. PRELIMINARY TREATMENT AND PHOSPHATES. (continued 4)Reading editionDie Käuflichen Dungermittel Stoffe, dritte Auflage, 1889.◇Copy noteReturn to PART FIRST. PRELIMINARY TREATMENT AND PHOSPHATES. (continued 4)