CAMPBELL'S SOIL CULTURE MANUAL 153 



more water will each square inch of soil hold, and conse- 

 quently our soil is safer and less liable to suffer from 

 drouth. There is but little expense attached to an ex- 

 periment to ascertain the correctness of our assertions 

 on this subject, and were you to make them, you would 

 find more and surer profit from them than from govern- 

 ment bonds. The sub-surface packer is a very valuable 

 tool in securing immediate results from manure. Exam- 

 ination of the illustrations in this book will make this 

 very clear, and the matter is not exaggerated in the 

 least. 



MANURE AND WATER. 



Professor Goff in his book oh principles of plant cul- 

 ture, says: "Much of the benefit of manuring undoubt- 

 edly comes from the increased capacity it gives the soils 

 for holding and transmitting water." 



Professor King says in his book on soils, that in three 

 years' experiments with barnyard manures he found 

 "That for manure fallowed ground the surface foot con- 

 tained eighteen and one-fourth times, or four thousand 

 and eighty-seven gallons more water per acre than ad- 

 jacent and similar but unmanured land did; while the 

 second foot contained nine and one-fourth tons and the 

 third six and one-third tons more water, making a tctal 

 difference in favor of the manured ground of thirty-fcui 

 and one-third tons or eighty-five thousand gallons." 



We would advise, where it is possible, to plow manure 

 uder in summer tilling fields, and in doing this it will be 

 found that far less seed is needed for best results. 



ECONOMY IN SEED. 



The use of manure has such an important bearing 

 on the proper preparation of the seed bed that its right 

 use may go a long way toward saving in the use of seed 



