observers ; the results are of great practical benefit to 

 farmers, not only in the Southern States, but also through- 

 out the country. 



Part IV is devoted to the results of potash fertilization 

 at various experiment stations. The results obtained by 

 these field tests with different crops show the need of 

 potash in a variety of soils and upon widely scattered 

 farms. Many photographs of results of different experi- 

 ments were taken, and some of them are faithfully repro- 

 duced in these pages. The illustrations presented may be 

 relied upon as strictly accurate views of actual experi- 

 ments. 



Part V comprises a series of tables, which farmers will 

 find useful, The figures are in every case authentic. 



