The Preparation of Substances 

 Important in Agriculture 



A Laboratory Manual of Synthetic 

 Agricultural Chemistry 



THIRD EDITION 

 BY 



CHARLES A. PETERS, Ph.Di 



Professor of Inorganic and Soil Chemistry 



Department of General and Agricultural Chemistry 



Massachusetts Agricultural College 



i >^ \.^\'\\ '' 



NEW YORK 



JOHN WILEY & SONS, Inc. 



London: CHAPMAN & HALL, Limited 



1919 



