UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



AGRICULTURAL SCIENCES 



Vol 1, No. 2, pp. 21-37 October 15, 1912 



STUDIES ON THE PHENOLDISULPHONIC 



ACID METHOD FOR DETERMINING 



NITRATES IN SOILS 



BY 



C. B. LIPMAN and L. T. SHARP 



UNIVERSITY OF CALIFORNIA PRESS 

 BERKELEY 



