PRINCIPLES AND PRACTICE —OF— AGRICULTURAL ANALYSIS. A MANUAL FOR THE ESTIMATION OF SOILS, FERTILIZERS, AND AGRICULTURAL PRODUCTS. FOR THE USE OF ANALYSTS, TEACHERS, AND STUDENTS OF AGRICULTURAL CHEMISTRY. VOLUME I. SOILS.
Reading edition
BY HARVEY W. WILEY,
Chemist of the U. S. Department of Agriculture.
EASTON, PA.,
Chemical Publishing Co.,
1894.
COPYRIGHT, 1895,
By Harvey W. Wiley.