INTRODUCTION". 1 



valuable part of it, namely the ammonia, and 

 the soluble salts that are dissolved and washed 

 away by the rain. Whereas all such substances 

 should be carefully stored under cover, so that a 

 certain amount of fermentation may be produced, 

 thus preparing them as an active manure when 

 needed. All the waste materials of the farm 

 should thus be prepared. The day will come 

 when this raw material of future crops will be 

 considered as worthy of a store-house as the 

 crop itself. 



An accurate knowledge of the value of these 

 waste products, as representing grass and butter, 

 corn, beef and bread, and the other necessaries 

 of life, will naturally lead to economy in saving 

 those materials. It is the paramount object of 

 this book, to give the farmer clear, comprehensive 

 views of the theory and practice of manuring, 

 so that he can, at the least possible expense, 

 raise large crops, preserve the standard fertility 

 of his lands, and leave an unimpaired inheritance 

 to his children. 



In order to do this we shall show the nature, 

 properties, and source of the different elements 

 that are exhausted by cultivation, and required 

 to be renewed as manures. 



The general composition of different crops and 

 plants that are cultivated on the farm, also thp 

 nature source, and properties of the various 



