The Soil; Its Use and Abuse 1367 



cherries on sandy and gravelly loam, and chestnut timber on rocky land 

 low in lime. He will put good land to plowed crops, grass land to pasture, 

 and rough land to timber. He will adapt his farming to nature's conditions 

 and obtain correspondingly better results. Or he may improve his crops 

 by breeding and selection, to make them better suited to his soil and climate. 

 In crop adaptation and improvement the opportunities for the profit- 

 able and intelligent manipulation of the soil and the plant are limitless. 

 Out of the soil come the chief materials for man's handiwork. The soil 

 welcomes his wisdom and assistance in its task. It repels his unwisdom 

 and carelessness. He has no commission to abuse it. Its frown is poverty, 

 its smile is plenty and peace. 



LITER-\TURE 



To the Reader: 



If you are interested in this bulletin, which gives the barest outlines of the 

 subject, you should secure other literature that will give you a fuller knowledge. 

 The Reading-Course Lessons are designed merely to introduce the subject; 

 they are elementary and brief. You should supplement them with reading 

 from other sources. We do not wish to recommend any particular books, 

 btdletins, or other publications over others on the same subject; but in connec- 

 tion with the subject considered in this bidletin we believe that you will find 

 the following books and bulletins of special interest: 



The Soil. S. W. Fletcher. Doubleday, Page & Co. $2.00. 

 Principles of Soil Fertility. Alfred Vivian. Orange Judd Company, 

 $1.00. 



Principles of Soil Management. T. L. Lyon and E. O. Fippin, The 

 Macmillan Company. $1.75. 



Soil Fertility and Permanent Agriculture. C. G. Hopkins. Ginn & 

 Co. $2.25. 



Fertilizers. E. B. Voorhees. The Macmillan Company. $1.40. 

 Practical Farm Drainage. C. G. Elliott. John Wiley & Sons. $1.25= 

 Farmers' Bulletins: 



No. 44. Commercial Fertilizers: Composition and Use. 



No. 77. Liming of Soil. 



No. 150. Clearing New Land. 



No. 187. Drainage of Farm Land. 



No. 192. Barnyard Manure. 



No. 245. Renovation of Womout Soils. 



No. 257. Soil FerriHty. 



No. 263. Practical Information for Beginners in Irrigation. 



