THE RURAL SCIENCE SERIES 



The Fertility of the Land 



A Summary Sketch of the Relationship of 

 Farm - practice to the Maintaining and Increasing of the Productivity of the Soil 



By I. P. ROBERTS 



Director of the College of Agriculture, Cornell University 

 riFTH EDITION 421 PAGES 45 ILLUSTRATIONS $1.25 



IS work, written by one who has been termed "the wisest farmer in 

 I America," takes up the treatment of the soil from the standpoint of the 



farmer rather than that of the scientist. It embodies the results of years 

 of careful experimentation and observation along practical lines, and will be 

 found helpful and inspiring to a marked degree. No other one book could be 

 so heartily recommended to the progressive farmer as this interesting series 

 of talks for Professor Roberts seems to be personally addressing the reader. 



THE FERTILITY OF THE LAND includes A Chat with the Young Farmer; Inventory 

 of the Land; Evolution of the Plow (fully illustrated); The Means and Philosophy of 

 Tilling the Land (telling how and why we should plow, harrow, etc.); Conserving 

 Moisture; Irrigation and Drainage;. Manures (in four unique, illustrated chapters); 

 Nitrogen; Potash and Phosphoric Acid; Lime and other dressings; Commercial Fertil- 

 izers; The Use of Clovers, Fallows and Rotations; Appendix. 



"In short, the book will be found helpful to the farmer, in that it will enable him 

 to go through the routine of his everyday work with intelligence, and. therefore- with 

 skill and the assurance of wider success." Garden and Forest 



The Spraying of Plants 



A Succinct Account of the History, Principles and Practice of the 

 Application of Liquids and Powders to Plants for the Purpose of Destroying Insects and Fungi 



By E. G. LODEMAN 



Late Instructor in Horticulture in the Cornell University 

 399 PAGES 92 ILLUSTRATIONS $1.00 



IN these days this subject is conceded to be of enormous importance to the 

 horticulturist ; for it is only by intelligent spraying that many large fruit 

 interests are saved from utter extinction. Professor Lodeman treats the 

 subject both historically and practically, and the work forms the only complete 

 manual of spraying, being admittedly the standard authority. Not only is 

 spraying discussed in its relations to the plant or tree and the crop, but the 

 diseases and insects which are to be combated are most fully presented. 



THE SPRAYING OF PLANTS includes in its first part a complete history of the rise of 

 spraying, both in this country and abroad. There are also full illustrated accounts of 

 pumps and nozzles, complete recipes of formulas, and the like. The second part, compris- 

 ing 135 pages, entitled "Specific Directions for Spraying Cultivated Plants," is an alpha- 

 betical illustrated account of the various insects and fungi, with methods of treating them. 



"Mr. Lodeman has gathered the results on an immense amount of experiments, both 

 in Europe and America, and his book can be trusted not only as a manual of practice, 

 but as a true and well -classified record of our knowledge on this subject at the present 

 time." Garden and Forest. 



