ON THE EXISTENCE OF DAILY CHANGES IN THE BACTERIAL NUMBERS IN AMERICAN SOIL
STUDIES OF THE REMOVAL OF NUTRIENTS FROM SUBSOIL BY ALFALFA
THE MICROFLORA AND THE PRODUCTIVITY OF LEACHED AND NON-LEACHED ALKALI SOIL
THE NORMAL MOISTURE CAPACITY OF SOILS
THE HYDROMETER AS A NEW AND RAPID METHOD FOR DETERMINING THE COLLOIDAL CONTENT OF SOILS
Données Numériques de Cristallographie et de Minéralogie