/ 



A GOOD BOOK FOR THE FARMER. 



The Chemistry of Soils and Fertilizers. 



By Harry Snyder, B.S., Professor of Chemistry in the 

 University of Minnesota. 



SUMMARY OF CONTENTS. INTRODUCTION. Work of Karly 

 Investigators. CHAPTER I. Physical Properties of Soils. CHAP- 

 TER II. Geological Formation and Classification of Soils. CHAP- 

 TER III. Chemical Composition of Soils. CHAPTER IV. Nitro- 

 gen of the Soil and Air, Nitrification and Nitrogenous Manures. 

 CHAPTER V. Fixation. CHAPTER VI. Farm Manures. CHAP- 

 TER VII. Phosphate Fertilizers. CHAPTER VIII. Potash Fer- 

 tilizers. CHAPTER IX. Lime and Miscellaneous Fertilizers. 

 CHAPTER X. Commercial Fertilizers. CHAPTER XI. Food Re- 

 quirements of Crops. CHAPTER XII. Rotation of Crops. 



" Professor Snyder has treated the chemistry of soils and fer- 

 tilizers in such a way as to produce a book which may be read with 

 profit not only by the students of agriculture, for whom it is pri- 

 marily designed, but also by the practical agriculturist, who too 

 often employs haphazard measures at times when a little more care 

 would give much more satisfactory results. The relation between 

 crop production and soil exhaustion is clearly made out, as is also 

 the proper treatment of farm manures in order to realize their 

 maximum efficiency. A bibliography is appended." C. G. L. 

 Wolf, in Journal of Physical Chemistry for January, 1900. 



* # * It should answer admirably the purpose for which it 

 was intended. The subject-matter is well chosen, well arranged, 

 and clearly and concisely stated. The style is as nearly popular as 

 is possible with applied chemistry, and the book will be found of 

 value even to agriculturists whose education has not included a 

 course in chemistry." W. D. Bigelow, in Journal of the Ameri- 

 can Chemical Society for February, 7000. 



IPT OF PRICE. 



The Chemical Publishing Co., Easton, Pa. 



