CONTENTS. VII 



CHAPTER XXIII. 



Management of Manures on Grain Farms. Letter from Hon. Geo. Geddes. 

 Grain on Dairy Farms. Sheep on Grain Farms. Visit to John Johnston. 

 Mr. Lawes' Wheat-field. Mr. Geddes and Clover. Gypsum and Clover as 

 Manures Ill 



CHAPTER XXIV. 



The Cheapest Manure a Farmer can use. Clover vs. Tillage. As Plant- 

 Food. Constituents of a Crop of Clover, as compared with one of Wheat. 

 Making a Farm Rich by Growing Clover 127 



CHAPTER XXV. 



Dr. Voelcker's Experiments on Clover. Lawes and Gilbert's on Wheat- 

 Clover Roots per Acre. Manures for Wheat. Liebig's Manure Theory. 

 Peruvian Guano on Wheat. Manures and the Quality of Wheat. Ammonia. 

 Over 50 Bushels of Wheat to the Acre 135 



CHAPTER XXVI. 



Experiments on Clover Soils from Burcott Lodge Farm, Leighton Buzzard. 

 Soil from Part of 11-acre Field twice Mown for Hay. Soil from do. once 

 Mown for Hay and left for Seed. Amount of Rootsleft in the Soil by differ- 

 ent Crops. Manures for Wheat 149 



CHAPTER XXVII. 



Lawes and Gilbert's Experiments on Wheat. Most Valuable and Instructive 

 Tables now first made accessible to the American Farmer. The growth of 

 Wheat Year after Year on the same Land, unmannred, with Farm-yard Ma- 

 nure, and with various Organic and Inorganic Fertilizers 170 



CHAPTER XXVIII. 



Lime as a Manure. Prof. Way's Experiments. The uses of Lime in the 

 Soil. Lime in this Country. Composts with Lime 215 



CHAPTER XXIX. 



Manures for Barley. Composition of Barley, grain and straw. Valuable Ta- 

 bles giving the Results of Lawes and Gilbert's Experiments on the growth 

 of Barley, Year after Year, on the same Land, without Manure, and with 

 different kinds of Manure. Manure and Rotation of Crops 227 



CHAPTER XXX. 



Manures for Oats. Experiments at Rolhamsted. Experiments of Mr. Bath 

 of .Virginia. At Moreton Farm 252 



CHAPTER XXXI. 



Manures for Potatoes. Peruvian Guano for Potatoes. Manure from different 

 Foods. Eperiments at Moreton Farm. Mr. Hunter's Experiments 255 



CHAPTER XXXII. 



What Crops should Manure be Applied to ? How, and When ? John J. 

 Thomas' manner of Applying Manure. Top Dressing. Doct. Voelcker's 

 Experiments 265 



CHAPTER XXXIII. 



Manures on Permanent Meadows and Pastures. Experiments at Rothamstcd.271 



