vi Preface 



Potassium Nitrate, Copper Sulfate and Lead 

 Nitrate. 



The appreciation of the author is also 

 exprest to Dr. H. S. Adams of New Bruns- 

 wick, N. J., who was associated with this 

 work in its early stages, and to Professor 

 Ernest Anderson of this laboratory who has 

 given this course for several years. Valuable 

 suggestions have come from both these men. 



The first edition was printed privately in 

 1914; the second was again mimeographed 

 in 1916; the third is herewith offerd to those 

 laboratories that have used the manual since 

 1914 and to others that wish to experience 

 the fascination of the synthetic method in 

 agricultural chemistry. 



A few simplified spelhngs have been used. 



Amherst, Mass., 

 August 1, 1918. 



