Principles and practice of agricultural analysis. Volume 2 (of 3), FertilizersNote 81 — PART FIRST. PRELIMINARY TREATMENT AND PHOSPHATES. (continued 2)Reading editionBulletin de la Société des Agriculteurs de France, 1876, p. 53.◇Copy noteReturn to PART FIRST. PRELIMINARY TREATMENT AND PHOSPHATES. (continued 2)