Principles and practice of agricultural analysis. Volume 2 (of 3), FertilizersNote 44 — PART FIRST. PRELIMINARY TREATMENT AND PHOSPHATES. (continued 2)Reading editionMethoden van Onderzock aan de Rijkslandbouw-proefstations, 1893, p. 4.◇Copy noteReturn to PART FIRST. PRELIMINARY TREATMENT AND PHOSPHATES. (continued 2)