CHEMICAL FERTILIZERS 

 AND PARASITICIDES 



BY 



S. HOARE COLLINS, M.Sc., F.I.C. 



LECTURER AND ADVISER IN AGRICULTURAL CHEMISTRY, ARMSTRONG 

 COLLEGE, NEWCASTLE-ON-TYNE (UNIVERSITY OF DURHAM) 

 FORMERLY ASSISTANT AGR1CUL TURAL CHEMIST TO THE 

 GOVERNMENT OF INDIA; AUTHOR OF "HAND- 

 BOOK OF AGRICULTURAL CHEMISTRY 

 FOR INDIAN STUDENTS" AND 

 "PLANT PRODUCTS" 



LONDON 

 BAILLIERE, TINDALL AND COX 



8, HENRIETTA STREET, COVENT GARDEN 

 1920 



All rights reserved 



